Merge pull request #1245 from Mbucari/master

Minor bugfixes

Source/AaxDecrypter/AaxDecrypter.csproj

@@ -13,7 +13,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-	  <PackageReference Include="AAXClean.Codecs" Version="2.0.1.1" />
+	  <PackageReference Include="AAXClean.Codecs" Version="2.0.1.2" />
 	</ItemGroup>
 
 	<ItemGroup>

Source/AaxDecrypter/AaxcDownloadConvertBase.cs

@@ -103,8 +103,8 @@ namespace AaxDecrypter
 
 			OnInitialized();
 			OnRetrievedTitle(AaxFile.AppleTags.TitleSansUnabridged);
-			OnRetrievedAuthors(AaxFile.AppleTags.FirstAuthor ?? "[unknown]");
-			OnRetrievedNarrators(AaxFile.AppleTags.Narrator ?? "[unknown]");
+			OnRetrievedAuthors(AaxFile.AppleTags.FirstAuthor);
+			OnRetrievedNarrators(AaxFile.AppleTags.Narrator);
 			OnRetrievedCoverArt(AaxFile.AppleTags.Cover);
 
 			return !IsCanceled;

Source/AaxDecrypter/AudiobookDownloadBase.cs

@@ -204,8 +204,6 @@ namespace AaxDecrypter
 				else
 					throw new InvalidOperationException($"Unknown file type: {fileType}");
 
-				FileUtility.SaferMove(tempFilePath, aaxPath);
-
 				OnFileCreated(aaxPath);
 				OnFileCreated(keyPath);
 			}

Source/AaxDecrypter/NetworkFileStream.cs

@@ -61,9 +61,6 @@ namespace AaxDecrypter
 
 		#region Constants
 
-		//Size of each range request. Android app uses 64MB chunks.
-		private const int RANGE_REQUEST_SZ = 64 * 1024 * 1024;
-
 		//Download memory buffer size
 		private const int DOWNLOAD_BUFF_SZ = 8 * 1024;
 
@@ -161,7 +158,7 @@ namespace AaxDecrypter
 
 			//Initiate connection with the first request block and
 			//get the total content length before returning.
-			using var client = new HttpClient();
+			var client = new HttpClient();
 			var response = await RequestNextByteRangeAsync(client);
 
 			if (ContentLength != 0 && ContentLength != response.FileSize)
@@ -170,38 +167,59 @@ namespace AaxDecrypter
 			ContentLength = response.FileSize;
 
 			_downloadedPiece = new EventWaitHandle(false, EventResetMode.AutoReset);
-			//Hand off the open request to the downloader to download and write data to file.
-			DownloadTask = Task.Run(() => DownloadLoopInternal(response), _cancellationSource.Token);
+			//Hand off the client and the open request to the downloader to download and write data to file.
+			DownloadTask = Task.Run(() => DownloadLoopInternal(client , response), _cancellationSource.Token);
 		}
 
-		private async Task DownloadLoopInternal(BlockResponse initialResponse)
+		private async Task DownloadLoopInternal(HttpClient client, BlockResponse blockResponse)
 		{
-			await DownloadToFile(initialResponse);
-			initialResponse.Dispose();
-
 			try
 			{
-				using var client = new HttpClient();
+				long startPosition = WritePosition;
+
 				while (WritePosition < ContentLength && !IsCancelled)
 				{
-					using var response = await RequestNextByteRangeAsync(client);
-					await DownloadToFile(response);
+					try
+					{
+						await DownloadToFile(blockResponse);
+					}
+					catch (HttpIOException e)
+						when (e.HttpRequestError is HttpRequestError.ResponseEnded
+								&& WritePosition != startPosition
+								&& WritePosition < ContentLength && !IsCancelled)
+					{
+						Serilog.Log.Logger.Debug($"The download connection ended before the file completed downloading all 0x{ContentLength:X10} bytes");
+
+						//the download made *some* progress since the last attempt.
+						//Try again to complete the download from where it left off.
+						//Make sure to rewind file to last flush position.
+						_writeFile.Position = startPosition = WritePosition;
+						blockResponse.Dispose();
+						blockResponse = await RequestNextByteRangeAsync(client);
+
+						Serilog.Log.Logger.Debug($"Resuming the file download starting at position 0x{WritePosition:X10}.");
+					}
 				}
 			}
 			finally
 			{
-				_writeFile.Close();
+				_writeFile.Dispose();
+				blockResponse.Dispose();
+				client.Dispose();
 			}
 		}
 
 		private async Task<BlockResponse> RequestNextByteRangeAsync(HttpClient client)
 		{
-			var request = new HttpRequestMessage(HttpMethod.Get, Uri);
+			using var request = new HttpRequestMessage(HttpMethod.Get, Uri);
+
+			//Just in case it snuck in the saved json (Issue #1232)
+			RequestHeaders.Remove("Range");
 
 			foreach (var header in RequestHeaders)
 				request.Headers.Add(header.Key, header.Value);
 
-			request.Headers.Add("Range", $"bytes={WritePosition}-{WritePosition + RANGE_REQUEST_SZ - 1}");
+			request.Headers.Add("Range", $"bytes={WritePosition}-");
 
 			var response = await client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, _cancellationSource.Token);
 
@@ -226,7 +244,7 @@ namespace AaxDecrypter
 		private async Task DownloadToFile(BlockResponse block)
 		{
 			var endPosition = WritePosition + block.BlockSize;
-			var networkStream = await block.Response.Content.ReadAsStreamAsync(_cancellationSource.Token);
+			using var networkStream = await block.Response.Content.ReadAsStreamAsync(_cancellationSource.Token);
 
 			var downloadPosition = WritePosition;
 			var nextFlush = downloadPosition + DATA_FLUSH_SZ;
@@ -259,11 +277,11 @@ namespace AaxDecrypter
 
 					if (SpeedLimit >= MIN_BYTES_PER_SECOND && bytesReadSinceThrottle > SpeedLimit / THROTTLE_FREQUENCY)
 					{
-						var delayMS = (int)(startTime.AddSeconds(1d / THROTTLE_FREQUENCY) - DateTime.Now).TotalMilliseconds;
+						var delayMS = (int)(startTime.AddSeconds(1d / THROTTLE_FREQUENCY) - DateTime.UtcNow).TotalMilliseconds;
 						if (delayMS > 0)
 							await Task.Delay(delayMS, _cancellationSource.Token);
 
-						startTime = DateTime.Now;
+						startTime = DateTime.UtcNow;
 						bytesReadSinceThrottle = 0;
 					}
 
@@ -286,7 +304,6 @@ namespace AaxDecrypter
 			}
 			finally
 			{
-				networkStream.Close();
 				_downloadedPiece.Set();
 				OnUpdate();
 			}

Source/AppScaffolding/AppScaffolding.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
-    <Version>12.3.1.1</Version>
+    <Version>12.4.1.1</Version>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Octokit" Version="14.0.0" />

Source/ApplicationServices/LibraryExporter.cs

@@ -104,9 +104,6 @@ namespace ApplicationServices
 		[Name("Content Type")]
 		public string ContentType { get; set; }
 
-        [Name("Audio Format")]
-		public string AudioFormat { get; set; }
-
 		[Name("Language")]
         public string Language { get; set; }
 
@@ -152,7 +149,6 @@ namespace ApplicationServices
 				BookStatus = a.Book.UserDefinedItem.BookStatus.ToString(),
 				PdfStatus = a.Book.UserDefinedItem.PdfStatus.ToString(),
 				ContentType = a.Book.ContentType.ToString(),
-				AudioFormat = a.Book.AudioFormat.ToString(),
 				Language = a.Book.Language,
 				LastDownloaded = a.Book.UserDefinedItem.LastDownloaded,
 				LastDownloadedVersion = a.Book.UserDefinedItem.LastDownloadedVersion?.ToString() ?? "",
@@ -228,7 +224,6 @@ namespace ApplicationServices
 				nameof(ExportDto.BookStatus),
 				nameof(ExportDto.PdfStatus),
 				nameof(ExportDto.ContentType),
-				nameof(ExportDto.AudioFormat),
                 nameof(ExportDto.Language),
                 nameof(ExportDto.LastDownloaded),
                 nameof(ExportDto.LastDownloadedVersion),
@@ -299,7 +294,6 @@ namespace ApplicationServices
 				row.CreateCell(col++).SetCellValue(dto.BookStatus);
 				row.CreateCell(col++).SetCellValue(dto.PdfStatus);
 				row.CreateCell(col++).SetCellValue(dto.ContentType);
-                row.CreateCell(col++).SetCellValue(dto.AudioFormat);
                 row.CreateCell(col++).SetCellValue(dto.Language);
 
 				if (dto.LastDownloaded.HasValue)

Source/AudibleUtilities/AudibleUtilities.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AudibleApi" Version="9.4.0.1" />
+    <PackageReference Include="AudibleApi" Version="9.4.1.1" />
     <PackageReference Include="Google.Protobuf" Version="3.30.2" />
   </ItemGroup>
 

Source/DataLayer/Configurations/BookConfig.cs

@@ -19,7 +19,6 @@ namespace DataLayer.Configurations
             //
             entity.Ignore(nameof(Book.Authors));
             entity.Ignore(nameof(Book.Narrators));
-            entity.Ignore(nameof(Book.AudioFormat));
             entity.Ignore(nameof(Book.TitleWithSubtitle));
             entity.Ignore(b => b.Categories);
 

Source/DataLayer/EfClasses/AudioFormat.cs

@@ -1,65 +0,0 @@
-using System;
-
-namespace DataLayer
-{
-    internal enum AudioFormatEnum : long
-    {
-        //Defining the enum this way ensures that when comparing:
-        //LC_128_44100_stereo > LC_64_44100_stereo > LC_64_22050_stereo > LC_64_22050_stereo
-        //This matches how audible interprets these codecs when specifying quality using AudibleApi.DownloadQuality
-        //I've never seen mono formats.
-        Unknown = 0,
-        LC_32_22050_stereo = (32L << 18) | (22050 << 2) | 2,
-        LC_64_22050_stereo = (64L << 18) | (22050 << 2) | 2,
-        LC_64_44100_stereo = (64L << 18) | (44100 << 2) | 2,
-        LC_128_44100_stereo = (128L << 18) | (44100 << 2) | 2,
-		AAX_22_32 = LC_32_22050_stereo,
-		AAX_22_64 = LC_64_22050_stereo,
-		AAX_44_64 = LC_64_44100_stereo,
-		AAX_44_128 = LC_128_44100_stereo
-	}
-
-    public class AudioFormat : IComparable<AudioFormat>, IComparable
-    {
-        internal int AudioFormatID { get; private set; }
-        public int Bitrate { get; private init; }
-        public int SampleRate { get; private init; }
-        public int Channels { get; private init; }
-        public bool IsValid => Bitrate != 0 && SampleRate != 0 && Channels != 0;
-
-        public static AudioFormat FromString(string formatStr)
-        {
-            if (Enum.TryParse(formatStr, ignoreCase: true, out AudioFormatEnum enumVal))
-                return FromEnum(enumVal);
-            return FromEnum(AudioFormatEnum.Unknown);
-        }
-
-        internal static AudioFormat FromEnum(AudioFormatEnum enumVal)
-        {
-            var val = (long)enumVal;
-
-            return new()
-            {
-                Bitrate = (int)(val >> 18),
-                SampleRate = (int)(val >> 2) & ushort.MaxValue,
-                Channels = (int)(val & 3)
-            };
-        }
-        internal AudioFormatEnum ToEnum()
-        {
-            var val = (AudioFormatEnum)(((long)Bitrate << 18) | ((long)SampleRate << 2) | (long)Channels);
-
-            return Enum.IsDefined(val) ?
-                val : AudioFormatEnum.Unknown;
-        }
-
-        public override string ToString()
-            => IsValid ?
-            $"{Bitrate} Kbps, {SampleRate / 1000d:F1} kHz, {(Channels == 2 ? "Stereo" : Channels)}" :
-            "Unknown";
-
-        public int CompareTo(AudioFormat other) => ToEnum().CompareTo(other.ToEnum());
-
-        public int CompareTo(object obj) => CompareTo(obj as AudioFormat);
-    }
-}

Source/DataLayer/EfClasses/Book.cs

@@ -43,9 +43,11 @@ namespace DataLayer
         public ContentType ContentType { get; private set; }
         public string Locale { get; private set; }
 
-        internal AudioFormatEnum _audioFormat;
-
-        public AudioFormat AudioFormat { get => AudioFormat.FromEnum(_audioFormat); set => _audioFormat = value.ToEnum(); }
+		//This field is now unused, however, there is little sense in adding a
+		//database migration to remove an unused field. Leave it for compatibility.
+#pragma warning disable CS0649 // Field 'Book._audioFormat' is never assigned to, and will always have its default value 0
+		internal long _audioFormat;
+#pragma warning restore CS0649
 
         // mutable
         public string PictureId { get; set; }

Source/DtoImporterService/BookImporter.cs

@@ -154,9 +154,6 @@ namespace DtoImporterService
 			// Update the book titles, since formatting can change
 			book.UpdateTitle(item.Title, item.Subtitle);
 
-			var codec = item.AvailableCodecs?.Max(f => AudioFormat.FromString(f.EnhancedCodec)) ?? new AudioFormat();
-			book.AudioFormat = codec;
-
 			// set/update book-specific info which may have changed
 			if (item.PictureId is not null)
 				book.PictureId = item.PictureId;

Source/FileLiberator/AudioDecodable.cs

@@ -19,21 +19,24 @@ namespace FileLiberator
         protected void OnTitleDiscovered(object _, string title)
 		{
             Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(TitleDiscovered), Title = title });
-            TitleDiscovered?.Invoke(this, title);
+            if (title != null)
+                TitleDiscovered?.Invoke(this, title);
 		}
 
         protected void OnAuthorsDiscovered(string authors) => OnAuthorsDiscovered(null, authors);
         protected void OnAuthorsDiscovered(object _, string authors)
 		{
             Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(AuthorsDiscovered), Authors = authors });
-            AuthorsDiscovered?.Invoke(this, authors);
+			if (authors != null)
+				AuthorsDiscovered?.Invoke(this, authors);
 		}
 
         protected void OnNarratorsDiscovered(string narrators) => OnNarratorsDiscovered(null, narrators);
         protected void OnNarratorsDiscovered(object _, string narrators)
 		{
             Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(NarratorsDiscovered), Narrators = narrators });
-            NarratorsDiscovered?.Invoke(this, narrators);
+			if (narrators != null)
+				NarratorsDiscovered?.Invoke(this, narrators);
 		}
 
         protected byte[] OnRequestCoverArt()

Source/FileLiberator/AudioFileStorageExt.cs

@@ -39,14 +39,20 @@ namespace FileLiberator
 		/// Path: in progress directory.
 		/// File name: final file name.
 		/// </summary>
-		public static string GetInProgressFilename(this AudioFileStorage _, LibraryBook libraryBook, string extension)
-			=> Templates.File.GetFilename(libraryBook.ToDto(), AudibleFileStorage.DecryptInProgressDirectory, extension, returnFirstExisting: true);
+		public static string GetInProgressFilename(this AudioFileStorage _, LibraryBookDto libraryBook, string extension)
+			=> Templates.File.GetFilename(libraryBook, AudibleFileStorage.DecryptInProgressDirectory, extension, returnFirstExisting: true);
 
 		/// <summary>
 		/// PDF: audio file does not exist
 		/// </summary>
 		public static string GetBooksDirectoryFilename(this AudioFileStorage _, LibraryBook libraryBook, string extension)
 			=> Templates.File.GetFilename(libraryBook.ToDto(), AudibleFileStorage.BooksDirectory, extension);
+		
+		/// <summary>
+		/// PDF: audio file does not exist
+		/// </summary>
+		public static string GetBooksDirectoryFilename(this AudioFileStorage _, LibraryBookDto dto, string extension)
+			=> Templates.File.GetFilename(dto, AudibleFileStorage.BooksDirectory, extension);
 
 		/// <summary>
 		/// PDF: audio file already exists

Source/FileLiberator/DownloadDecryptBook.cs

@@ -47,13 +47,18 @@ namespace FileLiberator
                 if (libraryBook.Book.Audio_Exists())
                     return new StatusHandler { "Cannot find decrypt. Final audio file already exists" };
 
+                downloadValidation(libraryBook);
+				var api = await libraryBook.GetApiAsync();
+                var config = Configuration.Instance;
+				using var downloadOptions = await DownloadOptions.InitiateDownloadAsync(api, config, libraryBook);
+
                 bool success = false;
                 try
                 {
                     FilePathCache.Inserted += FilePathCache_Inserted;
                     FilePathCache.Removed += FilePathCache_Removed;
 
-                    success = await downloadAudiobookAsync(libraryBook);
+                    success = await downloadAudiobookAsync(api, config, downloadOptions);
                 }
                 finally
                 {
@@ -78,12 +83,12 @@ namespace FileLiberator
                 var finalStorageDir = getDestinationDirectory(libraryBook);
 
                 var moveFilesTask = Task.Run(() => moveFilesToBooksDir(libraryBook, entries));
-                Task[] finalTasks = new[]
-                {
-                    Task.Run(() => downloadCoverArt(libraryBook)),
+                Task[] finalTasks =
+                [
+                    Task.Run(() => downloadCoverArt(downloadOptions)),
                     moveFilesTask,
                     Task.Run(() => WindowsDirectory.SetCoverAsFolderIcon(libraryBook.Book.PictureId, finalStorageDir))
-                };
+                ];
 
 				try
                 {
@@ -116,16 +121,9 @@ namespace FileLiberator
             }
         }
 
-        private async Task<bool> downloadAudiobookAsync(LibraryBook libraryBook)
+        private async Task<bool> downloadAudiobookAsync(AudibleApi.Api api, Configuration config, DownloadOptions dlOptions)
         {
-            var config = Configuration.Instance;
-
-            downloadValidation(libraryBook);
-
-            var api = await libraryBook.GetApiAsync();
-
-            using var dlOptions = await DownloadOptions.InitiateDownloadAsync(api, libraryBook, config);
-            var outFileName = AudibleFileStorage.Audio.GetInProgressFilename(libraryBook, dlOptions.OutputFormat.ToString().ToLower());
+			var outFileName = AudibleFileStorage.Audio.GetInProgressFilename(dlOptions.LibraryBookDto, dlOptions.OutputFormat.ToString().ToLower());
             var cacheDir = AudibleFileStorage.DownloadsInProgressDirectory;
 
             if (dlOptions.DrmType is not DrmType.Adrm and not DrmType.Widevine)
@@ -149,7 +147,7 @@ namespace FileLiberator
             abDownloader.RetrievedAuthors += OnAuthorsDiscovered;
             abDownloader.RetrievedNarrators += OnNarratorsDiscovered;
             abDownloader.RetrievedCoverArt += AaxcDownloader_RetrievedCoverArt;
-            abDownloader.FileCreated += (_, path) => OnFileCreated(libraryBook, path);
+            abDownloader.FileCreated += (_, path) => OnFileCreated(dlOptions.LibraryBook, path);
 
             // REAL WORK DONE HERE
             var success = await abDownloader.RunAsync();
@@ -158,12 +156,12 @@ namespace FileLiberator
             {
                 var metadataFile = LibationFileManager.Templates.Templates.File.GetFilename(dlOptions.LibraryBookDto, Path.GetDirectoryName(outFileName), ".metadata.json");
 
-                var item = await api.GetCatalogProductAsync(libraryBook.Book.AudibleProductId, AudibleApi.CatalogOptions.ResponseGroupOptions.ALL_OPTIONS);
+                var item = await api.GetCatalogProductAsync(dlOptions.LibraryBook.Book.AudibleProductId, AudibleApi.CatalogOptions.ResponseGroupOptions.ALL_OPTIONS);
 				item.SourceJson.Add(nameof(ContentMetadata.ChapterInfo), Newtonsoft.Json.Linq.JObject.FromObject(dlOptions.ContentMetadata.ChapterInfo));
 				item.SourceJson.Add(nameof(ContentMetadata.ContentReference), Newtonsoft.Json.Linq.JObject.FromObject(dlOptions.ContentMetadata.ContentReference));
 
                 File.WriteAllText(metadataFile, item.SourceJson.ToString());
-                OnFileCreated(libraryBook, metadataFile);
+                OnFileCreated(dlOptions.LibraryBook, metadataFile);
             }
 			return success;
 		}
@@ -173,7 +171,7 @@ namespace FileLiberator
             if (sender is not AaxcDownloadConvertBase converter || converter.DownloadOptions is not DownloadOptions options)
 				return;
 
-            tags.Title ??= options.LibraryBookDto.TitleWithSubtitle;
+			tags.Title ??= options.LibraryBookDto.TitleWithSubtitle;
             tags.Album ??= tags.Title;
             tags.Artist ??= string.Join("; ", options.LibraryBook.Book.Authors.Select(a => a.Name));
             tags.AlbumArtists ??= tags.Artist;
@@ -280,7 +278,7 @@ namespace FileLiberator
 		private static FilePathCache.CacheEntry getFirstAudioFile(IEnumerable<FilePathCache.CacheEntry> entries)
             => entries.FirstOrDefault(f => f.FileType == FileType.Audio);
 
-		private static void downloadCoverArt(LibraryBook libraryBook)
+		private static void downloadCoverArt(DownloadOptions options)
         {
 			if (!Configuration.Instance.DownloadCoverArt) return;
 
@@ -288,24 +286,24 @@ namespace FileLiberator
 
             try
             {
-                var destinationDir = getDestinationDirectory(libraryBook);
-                coverPath = AudibleFileStorage.Audio.GetBooksDirectoryFilename(libraryBook, ".jpg");
+                var destinationDir = getDestinationDirectory(options.LibraryBook);
+                coverPath = AudibleFileStorage.Audio.GetBooksDirectoryFilename(options.LibraryBookDto, ".jpg");
                 coverPath = Path.Combine(destinationDir, Path.GetFileName(coverPath));
 
                 if (File.Exists(coverPath))
                     FileUtility.SaferDelete(coverPath);
 
-                var picBytes = PictureStorage.GetPictureSynchronously(new(libraryBook.Book.PictureLarge ?? libraryBook.Book.PictureId, PictureSize.Native));
+                var picBytes = PictureStorage.GetPictureSynchronously(new(options.LibraryBook.Book.PictureLarge ?? options.LibraryBook.Book.PictureId, PictureSize.Native));
                 if (picBytes.Length > 0)
                 {
                     File.WriteAllBytes(coverPath, picBytes);
-                    SetFileTime(libraryBook, coverPath);
+                    SetFileTime(options.LibraryBook, coverPath);
                 }
             }
             catch (Exception ex)
             {
                 //Failure to download cover art should not be considered a failure to download the book
-                Serilog.Log.Logger.Error(ex, $"Error downloading cover art of {libraryBook.Book.AudibleProductId} to {coverPath} catalog product.");
+                Serilog.Log.Logger.Error(ex, $"Error downloading cover art of {options.LibraryBook.Book.AudibleProductId} to {coverPath} catalog product.");
             }
         }
     }

Source/FileLiberator/DownloadOptions.Factory.cs

@@ -10,6 +10,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Net.Http;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 
 #nullable enable
@@ -23,9 +24,18 @@ public partial class DownloadOptions
 	/// <summary>
 	/// Initiate an audiobook download from the audible api.
 	/// </summary>
-	public static async Task<DownloadOptions> InitiateDownloadAsync(Api api, LibraryBook libraryBook, Configuration config)
+	public static async Task<DownloadOptions> InitiateDownloadAsync(Api api, Configuration config, LibraryBook libraryBook)
 	{
 		var license = await ChooseContent(api, libraryBook, config);
+
+		//Come audiobooks will have incorrect chapters in the metadata returned from the license request,
+		//but the metadata returned by the content metadata endpoint will be correct. Call the content
+		//metadata endpoint and use its chapters. Only replace the license request chapters if the total
+		//lengths match (defensive against different audio formats having slightly different lengths).
+		var metadata = await api.GetContentMetadataAsync(libraryBook.Book.AudibleProductId);
+		if (metadata.ChapterInfo.RuntimeLengthMs == license.ContentMetadata.ChapterInfo.RuntimeLengthMs)
+			license.ContentMetadata.ChapterInfo = metadata.ChapterInfo;
+
 		var options = BuildDownloadOptions(libraryBook, config, license);
 
 		return options;
@@ -33,81 +43,78 @@ public partial class DownloadOptions
 
 	private static async Task<ContentLicense> ChooseContent(Api api, LibraryBook libraryBook, Configuration config)
 	{
-		var cdm = await Cdm.GetCdmAsync();
-
 		var dlQuality = config.FileDownloadQuality == Configuration.DownloadQuality.Normal ? DownloadQuality.Normal : DownloadQuality.High;
 
-		ContentLicense? contentLic = null;
-		ContentLicense? fallback = null;
+		if (!config.UseWidevine || await Cdm.GetCdmAsync() is not Cdm cdm)
+			return await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality);
 
-		if (cdm is null)
+		ContentLicense? contentLic = null, fallback = null;
+
+		try
 		{
-			//Doesn't matter what the user chose. We can't get a CDM so we must fall back to AAX(C)
-			contentLic = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality);
+			//try to request a widevine content license using the user's spatial audio settings
+			var codecChoice = config.SpatialAudioCodec switch
+			{
+				Configuration.SpatialCodec.EC_3 => Ec3Codec,
+				Configuration.SpatialCodec.AC_4 => Ac4Codec,
+				_ => throw new NotSupportedException($"Unknown value for {nameof(config.SpatialAudioCodec)}")
+			};
+
+			contentLic
+				= await api.GetDownloadLicenseAsync(
+					libraryBook.Book.AudibleProductId,
+					dlQuality,
+					ChapterTitlesType.Tree,
+					DrmType.Widevine,
+					config.RequestSpatial,
+					codecChoice);
 		}
-		else
+		catch (Exception ex)
 		{
-			var spatial = config.FileDownloadQuality is Configuration.DownloadQuality.Spatial;
-			try
-				{
-				var codecChoice = config.SpatialAudioCodec switch
-				{
-					Configuration.SpatialCodec.EC_3 => Ec3Codec,
-					Configuration.SpatialCodec.AC_4 => Ac4Codec,
-					_ => throw new NotSupportedException($"Unknown value for {nameof(config.SpatialAudioCodec)}")
-				};
-				contentLic = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality, ChapterTitlesType.Tree, DrmType.Widevine, spatial, codecChoice);
-			}
-			catch (Exception ex)
-			{
-				Serilog.Log.Logger.Error(ex, "Failed to request a Widevine license.");
-			}
-
-			if (contentLic is null)
-			{
-				//We failed to get a widevine license, so fall back to AAX(C)
-				contentLic = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality);
-			}
-			else if (!contentLic.ContentMetadata.ContentReference.IsSpatial && contentLic.DrmType != DrmType.Adrm)
-			{
-				/*
-				We got a widevine license and we have a Cdm, but we still need to decide if we WANT the file
-				being delivered with widevine. This file is not "spatial", so it may be no better than the
-				audio in the Adrm files. All else being equal, we prefer Adrm files because they have more
-				build-in metadata and always AAC-LC, which is a codec playable by pretty much every device
-				in existence.
-
-				Unfortunately, there appears to be no way to determine which codec/quality combination we'll
-				get until we make the request and see what content gets delivered. For some books,
-				Widevine/High delivers 44.1 kHz / 128 kbps audio and Adrm/High delivers 22.05 kHz / 64 kbps.
-				In those cases, the Widevine content size is much larger. Other books will deliver the same
-				sample rate / bitrate for both Widevine and Adrm, the only difference being codec. Widevine
-				is usually xHE-AAC, but is sometimes AAC-LC. Adrm is always AAC-LC.
-
-				To decide which file we want, use this simple rule: if files are different codecs and
-				Widevine is significantly larger, use Widevine. Otherwise use ADRM.
-
-				*/
-				fallback = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality);
-
-				var wvCr = contentLic.ContentMetadata.ContentReference;
-				var adrmCr = fallback.ContentMetadata.ContentReference;
-
-				if (wvCr.Codec == adrmCr.Codec ||
-					adrmCr.ContentSizeInBytes > wvCr.ContentSizeInBytes ||
-					RelativePercentDifference(adrmCr.ContentSizeInBytes, wvCr.ContentSizeInBytes) < 0.05)
-				{
-					contentLic = fallback;
-				}
-			}
+			Serilog.Log.Logger.Error(ex, "Failed to request a Widevine license.");
+			//We failed to get a widevine license, so fall back to AAX(C)
+			return await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality);
 		}
 
-		if (contentLic.DrmType == DrmType.Widevine && cdm is not null)
+		if (!contentLic.ContentMetadata.ContentReference.IsSpatial && contentLic.DrmType != DrmType.Adrm)
+		{
+			/*
+			We got a widevine license and we have a Cdm, but we still need to decide if we WANT the file
+			being delivered with widevine. This file is not "spatial", so it may be no better than the
+			audio in the Adrm files. All else being equal, we prefer Adrm files because they have more
+			build-in metadata and always AAC-LC, which is a codec playable by pretty much every device
+			in existence.
+
+			Unfortunately, there appears to be no way to determine which codec/quality combination we'll
+			get until we make the request and see what content gets delivered. For some books,
+			Widevine/High delivers 44.1 kHz / 128 kbps audio and Adrm/High delivers 22.05 kHz / 64 kbps.
+			In those cases, the Widevine content size is much larger. Other books will deliver the same
+			sample rate / bitrate for both Widevine and Adrm, the only difference being codec. Widevine
+			is usually xHE-AAC, but is sometimes AAC-LC. Adrm is always AAC-LC.
+
+			To decide which file we want, use this simple rule: if files are different codecs and
+			Widevine is significantly larger, use Widevine. Otherwise use ADRM.
+			*/
+
+			fallback = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId, dlQuality);
+
+			var wvCr = contentLic.ContentMetadata.ContentReference;
+			var adrmCr = fallback.ContentMetadata.ContentReference;
+
+			if (wvCr.Codec == adrmCr.Codec ||
+				adrmCr.ContentSizeInBytes > wvCr.ContentSizeInBytes ||
+				RelativePercentDifference(adrmCr.ContentSizeInBytes, wvCr.ContentSizeInBytes) < 0.05)
+			{
+				contentLic = fallback;
+			}
+		}		
+
+		if (contentLic.DrmType == DrmType.Widevine)
 		{
 			try
 			{
 				using var client = new HttpClient();
-				var mpdResponse = await client.GetAsync(contentLic.LicenseResponse);
+				using var mpdResponse = await client.GetAsync(contentLic.LicenseResponse);
 				var dash = new MpegDash(mpdResponse.Content.ReadAsStream());
 
 				if (!dash.TryGetUri(new Uri(contentLic.LicenseResponse), out var contentUri))
@@ -124,7 +131,6 @@ public partial class DownloadOptions
 					Key = Convert.ToHexStringLower(keys[0].Kid.ToByteArray()),
 					Iv = Convert.ToHexStringLower(keys[0].Key)
 				};
-
 			}
 			catch
 			{
@@ -160,9 +166,6 @@ public partial class DownloadOptions
 			: contentLic.DrmType is DrmType.Adrm && contentLic.Voucher?.Key.Length == 32 && contentLic.Voucher?.Iv.Length == 32 ? AAXClean.FileType.Aaxc
 			: null;
 
-		//Set the requested AudioFormat for use in file naming templates
-		libraryBook.Book.AudioFormat = AudioFormat.FromString(contentLic.ContentMetadata.ContentReference.ContentFormat);
-
 		var dlOptions = new DownloadOptions(config, libraryBook, contentLic.ContentMetadata.ContentUrl?.OfflineUrl)
 		{
 			AudibleKey = contentLic.Voucher?.Key,
@@ -176,6 +179,14 @@ public partial class DownloadOptions
 			RuntimeLength = TimeSpan.FromMilliseconds(contentLic.ContentMetadata.ChapterInfo.RuntimeLengthMs),
 		};
 
+		dlOptions.LibraryBookDto.Codec = contentLic.ContentMetadata.ContentReference.Codec;
+		if (TryGetAudioInfo(contentLic.ContentMetadata.ContentUrl, out int? bitrate, out int? sampleRate, out int? channels))
+		{
+			dlOptions.LibraryBookDto.BitRate = bitrate;
+			dlOptions.LibraryBookDto.SampleRate = sampleRate;
+			dlOptions.LibraryBookDto.Channels = channels;
+		}
+
 		var titleConcat = config.CombineNestedChapterTitles ? ": " : null;
 		var chapters
 			= flattenChapters(contentLic.ContentMetadata.ChapterInfo.Chapters, titleConcat)
@@ -202,6 +213,43 @@ public partial class DownloadOptions
 		return dlOptions;
 	}
 
+	/// <summary>
+	/// The most reliable way to get these audio file properties is from the filename itself.
+	/// Using AAXClean to read the metadata works well for everything except AC-4 bitrate.
+	/// </summary>
+	private static bool TryGetAudioInfo(ContentUrl? contentUrl, out int? bitrate, out int? sampleRate, out int? channels)
+	{
+		bitrate = sampleRate = channels = null;
+
+		if (contentUrl?.OfflineUrl is not string url || !Uri.TryCreate(url, default, out var uri))
+			return false;
+
+		var file = Path.GetFileName(uri.LocalPath);
+
+		var match = AdrmAudioProperties().Match(file);
+		if (match.Success)
+		{
+			bitrate = int.Parse(match.Groups[1].Value);
+			sampleRate = int.Parse(match.Groups[2].Value);
+			channels = int.Parse(match.Groups[3].Value);
+			return true;
+		}
+		else if ((match = WidevineAudioProperties().Match(file)).Success)
+		{
+			bitrate = int.Parse(match.Groups[2].Value);
+			sampleRate = int.Parse(match.Groups[1].Value) * 1000;
+			channels = match.Groups[3].Value switch
+			{
+				"ec3" => 6,
+				"ac4" => 3,
+				_ => null
+			};
+			return true;
+		}
+
+		return false;
+	}
+
 	public static LameConfig GetLameOptions(Configuration config)
 	{
 		LameConfig lameConfig = new()
@@ -317,7 +365,7 @@ public partial class DownloadOptions
 			else if (titleConcat is null)
 			{
 				chaps.Add(c);
-				chaps.AddRange(flattenChapters(c.Chapters));
+				chaps.AddRange(flattenChapters(c.Chapters, titleConcat));
 			}
 			else
 			{
@@ -330,7 +378,7 @@ public partial class DownloadOptions
 				else
 					chaps.Add(c);
 
-				var children = flattenChapters(c.Chapters);
+				var children = flattenChapters(c.Chapters, titleConcat);
 
 				foreach (var child in children)
 					child.Title = $"{c.Title}{titleConcat}{child.Title}";
@@ -359,4 +407,9 @@ public partial class DownloadOptions
 
 	static double RelativePercentDifference(long num1, long num2)
 		=> Math.Abs(num1 - num2) / (double)(num1 + num2);
+
+	[GeneratedRegex(@".+_(\d+)_(\d+)-(\w+).mp4", RegexOptions.Singleline | RegexOptions.IgnoreCase)]
+	private static partial Regex WidevineAudioProperties();
+	[GeneratedRegex(@".+_lc_(\d+)_(\d+)_(\d+).aax", RegexOptions.Singleline | RegexOptions.IgnoreCase)]
+	private static partial Regex AdrmAudioProperties();
 }

Source/FileLiberator/UtilityExtensions.cs

@@ -55,9 +55,6 @@ namespace FileLiberator
 				IsPodcastParent = libraryBook.Book.IsEpisodeParent(),
 				IsPodcast = libraryBook.Book.IsEpisodeChild() || libraryBook.Book.IsEpisodeParent(),
 
-				BitRate = libraryBook.Book.AudioFormat.Bitrate,
-				SampleRate = libraryBook.Book.AudioFormat.SampleRate,
-				Channels = libraryBook.Book.AudioFormat.Channels,
 				Language = libraryBook.Book.Language
 			};
 		}

Source/HangoverAvalonia/App.axaml

@@ -6,7 +6,30 @@
         <local:ViewLocator/>
     </Application.DataTemplates>
 
-    <Application.Styles>
-        <FluentTheme/>
-    </Application.Styles>
+	<Application.Styles>
+		<FluentTheme>
+			<FluentTheme.Palettes>
+				<ColorPaletteResources x:Key="Light" />
+				<ColorPaletteResources x:Key="Dark" />
+			</FluentTheme.Palettes>
+		</FluentTheme>
+
+		<Style Selector="TextBox[IsReadOnly=true]">
+			<Setter Property="Background" Value="{DynamicResource SystemChromeDisabledHighColor}" />
+			<Setter Property="CaretBrush" Value="{DynamicResource SystemControlTransparentBrush}" />
+			<Style Selector="^ /template/ Border#PART_BorderElement">
+				<Setter Property="Background" Value="{DynamicResource SystemChromeDisabledHighColor}" />
+			</Style>
+		</Style>
+		<Style Selector="Button">
+			<Setter Property="VerticalContentAlignment" Value="Center"/>
+			<Style Selector="^">
+				<Setter Property="Foreground" Value="{DynamicResource SystemChromeAltLowColor}" />
+			</Style>
+		</Style>
+		<Style Selector="ScrollBar">
+			<!-- It's called AutoHide, but this is really the mouseover shrink/expand. -->
+			<Setter Property="AllowAutoHide" Value="false"/>
+		</Style>
+	</Application.Styles>
 </Application>

Source/HangoverAvalonia/Controls/CheckedListBox.axaml

@@ -4,27 +4,16 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
 			 mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
              x:Class="HangoverAvalonia.Controls.CheckedListBox">
-	
-	<UserControl.Resources>
-		<RecyclePool x:Key="RecyclePool" />
-		<DataTemplate x:Key="queuedBook">
-			<CheckBox HorizontalAlignment="Stretch" Margin="10,0,0,0" Content="{Binding Item}" IsChecked="{Binding IsChecked, Mode=TwoWay}" />
-		</DataTemplate>
-		<RecyclingElementFactory x:Key="elementFactory" RecyclePool="{StaticResource RecyclePool}">
-			<RecyclingElementFactory.Templates>
-				<StaticResource x:Key="queuedBook" ResourceKey="queuedBook" />
-			</RecyclingElementFactory.Templates>
-		</RecyclingElementFactory>
-	</UserControl.Resources>
 
 	<ScrollViewer
-		Name="scroller"
 		HorizontalScrollBarVisibility="Disabled"
 		VerticalScrollBarVisibility="Auto">
-		<ItemsRepeater IsVisible="True"
-			VerticalCacheLength="1.2"
-			HorizontalCacheLength="1"
-			ItemsSource="{Binding CheckboxItems}"
-			ItemTemplate="{StaticResource elementFactory}" />
+		<ItemsControl ItemsSource="{Binding $parent[1].Items}">
+			<ItemsControl.ItemTemplate>
+				<DataTemplate>
+					<CheckBox HorizontalAlignment="Stretch" Margin="10,0,0,0" Content="{Binding Item}" IsChecked="{Binding IsChecked, Mode=TwoWay}" />
+				</DataTemplate>
+			</ItemsControl.ItemTemplate>
+		</ItemsControl>
 	</ScrollViewer>
 </UserControl>

Source/HangoverAvalonia/Controls/CheckedListBox.axaml.cs

@@ -2,103 +2,18 @@ using Avalonia;
 using Avalonia.Collections;
 using Avalonia.Controls;
 using HangoverAvalonia.ViewModels;
-using ReactiveUI;
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Linq;
 
-namespace HangoverAvalonia.Controls
+namespace HangoverAvalonia.Controls;
+
+public partial class CheckedListBox : UserControl
 {
-	public partial class CheckedListBox : UserControl
+	public static readonly StyledProperty<AvaloniaList<CheckBoxViewModel>> ItemsProperty =
+	AvaloniaProperty.Register<CheckedListBox, AvaloniaList<CheckBoxViewModel>>(nameof(Items));
+
+	public AvaloniaList<CheckBoxViewModel> Items { get => GetValue(ItemsProperty); set => SetValue(ItemsProperty, value); }
+
+	public CheckedListBox()
 	{
-		public event EventHandler<ItemCheckEventArgs> ItemCheck;
-
-		public static readonly StyledProperty<IEnumerable> ItemsProperty =
-		AvaloniaProperty.Register<CheckedListBox, IEnumerable>(nameof(Items));
-
-		public IEnumerable Items { get => GetValue(ItemsProperty); set => SetValue(ItemsProperty, value); }
-		private CheckedListBoxViewModel _viewModel = new();
-
-		public IEnumerable<object> CheckedItems =>
-			_viewModel
-			.CheckboxItems
-			.Where(i => i.IsChecked)
-			.Select(i => i.Item);
-
-		public void SetItemChecked(int i, bool isChecked) => _viewModel.CheckboxItems[i].IsChecked = isChecked;
-		public void SetItemChecked(object item, bool isChecked)
-		{
-			var obj = _viewModel.CheckboxItems.SingleOrDefault(i => i.Item == item);
-			if (obj is not null)
-				obj.IsChecked = isChecked;
-		}
-
-		public CheckedListBox()
-		{
-			InitializeComponent();
-			scroller.DataContext = _viewModel;
-			_viewModel.CheckedChanged += _viewModel_CheckedChanged;
-		}
-
-		private void _viewModel_CheckedChanged(object sender, CheckBoxViewModel e)
-		{
-			var args = new ItemCheckEventArgs { Item = e.Item, ItemIndex = _viewModel.CheckboxItems.IndexOf(e), IsChecked = e.IsChecked };
-			ItemCheck?.Invoke(this, args);
-		}
-
-		protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
-		{
-			if (change.Property.Name == nameof(Items) && Items != null)
-				_viewModel.SetItems(Items);
-			base.OnPropertyChanged(change);
-		}
-
-		public class CheckedListBoxViewModel : ViewModelBase
-		{
-			public event EventHandler<CheckBoxViewModel> CheckedChanged;
-			public AvaloniaList<CheckBoxViewModel> CheckboxItems { get; private set; }
-
-			public void SetItems(IEnumerable items)
-			{
-				UnsubscribeFromItems(CheckboxItems);
-				CheckboxItems = new(items.OfType<object>().Select(o => new CheckBoxViewModel { Item = o }));
-				SubscribeToItems(CheckboxItems);
-				this.RaisePropertyChanged(nameof(CheckboxItems));
-			}
-
-			private void SubscribeToItems(IEnumerable objects)
-			{
-				foreach (var i in objects.OfType<INotifyPropertyChanged>())
-					i.PropertyChanged += I_PropertyChanged;
-			}
-
-			private void UnsubscribeFromItems(AvaloniaList<CheckBoxViewModel> objects)
-			{
-				if (objects is null) return;
-
-				foreach (var i in objects)
-					i.PropertyChanged -= I_PropertyChanged;
-			}
-			private void I_PropertyChanged(object sender, PropertyChangedEventArgs e)
-			{
-				CheckedChanged?.Invoke(this, (CheckBoxViewModel)sender);
-			}
-		}
-		public class CheckBoxViewModel : ViewModelBase
-		{
-			private bool _isChecked;
-			public bool IsChecked { get => _isChecked; set => this.RaiseAndSetIfChanged(ref _isChecked, value); }
-			private object _bookText;
-			public object Item { get => _bookText; set => this.RaiseAndSetIfChanged(ref _bookText, value); }
-		}
-	}
-
-	public class ItemCheckEventArgs : EventArgs
-	{
-		public int ItemIndex { get; init; }
-		public bool IsChecked { get; init; }
-		public object Item { get; init; }
+		InitializeComponent();
 	}
 }

Source/HangoverAvalonia/HangoverAvalonia.csproj

@@ -71,13 +71,12 @@
 	</ItemGroup>
 	<ItemGroup>
 
-		<PackageReference Include="Avalonia" Version="11.2.8" />
-		<PackageReference Include="Avalonia.Desktop" Version="11.2.8" />
+		<PackageReference Include="Avalonia" Version="11.3.0" />
+		<PackageReference Include="Avalonia.Desktop" Version="11.3.0" />
 		<!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
-		<PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.2.8" />
-		<PackageReference Include="Avalonia.ReactiveUI" Version="11.2.8" />
-		<PackageReference Include="Avalonia.Controls.ItemsRepeater" Version="11.1.5" />
-		<PackageReference Include="Avalonia.Themes.Fluent" Version="11.2.8" />
+		<PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.3.0" />
+		<PackageReference Include="Avalonia.ReactiveUI" Version="11.3.0" />
+		<PackageReference Include="Avalonia.Themes.Fluent" Version="11.3.0" />
 	</ItemGroup>
 	<ItemGroup>
 		<ProjectReference Include="..\HangoverBase\HangoverBase.csproj" />

Source/HangoverAvalonia/ViewModels/CheckBoxViewModel.cs

@@ -0,0 +1,11 @@
+using ReactiveUI;
+
+namespace HangoverAvalonia.ViewModels;
+
+public class CheckBoxViewModel : ViewModelBase
+{
+	private bool _isChecked;
+	public bool IsChecked { get => _isChecked; set => this.RaiseAndSetIfChanged(ref _isChecked, value); }
+	private object _bookText;
+	public object Item { get => _bookText; set => this.RaiseAndSetIfChanged(ref _bookText, value); }
+}

Source/HangoverAvalonia/ViewModels/MainVM.Deleted.cs

@@ -1,41 +1,8 @@
-using ApplicationServices;
-using DataLayer;
-using ReactiveUI;
-using System.Collections.Generic;
+namespace HangoverAvalonia.ViewModels;
 
-namespace HangoverAvalonia.ViewModels
+public partial class MainVM
 {
-	public partial class MainVM
-	{
-		private List<LibraryBook> _deletedBooks;
-		public List<LibraryBook> DeletedBooks { get => _deletedBooks; set => this.RaiseAndSetIfChanged(ref _deletedBooks, value); }
-		public string CheckedCountText => $"Checked : {_checkedBooksCount} of {_totalBooksCount}";
+	public TrashBinViewModel TrashBinViewModel { get; } = new();
 
-		private int _totalBooksCount = 0;
-		private int _checkedBooksCount = 0;
-		public int CheckedBooksCount
-		{
-			get => _checkedBooksCount;
-			set
-			{
-				if (_checkedBooksCount != value)
-				{
-					_checkedBooksCount = value;
-					this.RaisePropertyChanged(nameof(CheckedCountText));
-				}
-			}
-		}
-		private void Load_deletedVM()
-		{
-			reload();
-		}
-
-		public void reload()
-		{
-			DeletedBooks = DbContexts.GetContext().GetDeletedLibraryBooks();
-			_checkedBooksCount = 0;
-			_totalBooksCount = DeletedBooks.Count;
-			this.RaisePropertyChanged(nameof(CheckedCountText));
-		}
-	}
+	private void Load_deletedVM() { }
 }

Source/HangoverAvalonia/ViewModels/TrashBinViewModel.cs

@@ -0,0 +1,117 @@
+using ApplicationServices;
+using Avalonia.Collections;
+using DataLayer;
+using ReactiveUI;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace HangoverAvalonia.ViewModels;
+
+public class TrashBinViewModel : ViewModelBase, IDisposable
+{
+	public AvaloniaList<CheckBoxViewModel> DeletedBooks { get; }
+	public string CheckedCountText => $"Checked : {_checkedBooksCount} of {_totalBooksCount}";
+
+	private bool _controlsEnabled = true;
+	public bool ControlsEnabled { get => _controlsEnabled; set => this.RaiseAndSetIfChanged(ref _controlsEnabled, value); }
+
+	private bool? everythingChecked = false;
+	public bool? EverythingChecked
+	{
+		get => everythingChecked;
+		set
+		{
+			everythingChecked = value ?? false;
+
+			if (everythingChecked is true)
+				CheckAll();
+			else if (everythingChecked is false)
+				UncheckAll();
+		}
+	}
+
+	private int _totalBooksCount = 0;
+	private int _checkedBooksCount = -1;
+	public int CheckedBooksCount
+	{
+		get => _checkedBooksCount;
+		set
+		{
+			_checkedBooksCount = value;
+			this.RaisePropertyChanged(nameof(CheckedCountText));
+
+			everythingChecked
+				= _checkedBooksCount == 0 || _totalBooksCount == 0 ? false
+				: _checkedBooksCount == _totalBooksCount ? true
+				: null;
+
+			this.RaisePropertyChanged(nameof(EverythingChecked));
+		}
+	}
+
+	public IEnumerable<LibraryBook> CheckedBooks => DeletedBooks.Where(i => i.IsChecked).Select(i => i.Item).Cast<LibraryBook>();
+
+	public TrashBinViewModel()
+	{
+		DeletedBooks = new()
+		{
+			ResetBehavior = ResetBehavior.Remove
+		};
+
+		tracker = DeletedBooks.TrackItemPropertyChanged(CheckboxPropertyChanged);
+		Reload();
+	}
+
+	public void CheckAll()
+	{
+		foreach (var item in DeletedBooks)
+			item.IsChecked = true;
+	}
+
+	public void UncheckAll()
+	{
+		foreach (var item in DeletedBooks)
+			item.IsChecked = false;
+	}
+
+	public async Task RestoreCheckedAsync()
+	{
+		ControlsEnabled = false;
+		var qtyChanges = await Task.Run(CheckedBooks.RestoreBooks);
+		if (qtyChanges > 0)
+			Reload();
+		ControlsEnabled = true;
+	}
+
+	public async Task PermanentlyDeleteCheckedAsync()
+	{
+		ControlsEnabled = false;
+		var qtyChanges = await Task.Run(CheckedBooks.PermanentlyDeleteBooks);
+		if (qtyChanges > 0)
+			Reload();
+		ControlsEnabled = true;
+	}
+
+	public void Reload()
+	{
+		var deletedBooks = DbContexts.GetContext().GetDeletedLibraryBooks();
+
+		DeletedBooks.Clear();
+		DeletedBooks.AddRange(deletedBooks.Select(lb => new CheckBoxViewModel { Item = lb }));
+
+		_totalBooksCount = DeletedBooks.Count;
+		CheckedBooksCount = 0;
+	}
+
+	private IDisposable tracker;
+	private void CheckboxPropertyChanged(Tuple<object, PropertyChangedEventArgs> e)
+	{
+		if (e.Item2.PropertyName == nameof(CheckBoxViewModel.IsChecked))
+			CheckedBooksCount = DeletedBooks.Count(b => b.IsChecked);
+	}
+
+	public void Dispose() => tracker?.Dispose();
+}

Source/HangoverAvalonia/Views/MainWindow.Deleted.cs

@@ -1,40 +1,12 @@
-using ApplicationServices;
-using DataLayer;
-using HangoverAvalonia.Controls;
-using System.Linq;
+namespace HangoverAvalonia.Views;
 
-namespace HangoverAvalonia.Views
+public partial class MainWindow
 {
-	public partial class MainWindow
+	private void deletedTab_VisibleChanged(bool isVisible)
 	{
-		private void deletedTab_VisibleChanged(bool isVisible)
-		{
-			if (!isVisible)
-				return;
+		if (!isVisible)
+			return;
 
-			if (_viewModel.DeletedBooks.Count == 0)
-				_viewModel.reload();
-		}
-		public void Deleted_CheckedListBox_ItemCheck(object sender, ItemCheckEventArgs args)
-		{
-			_viewModel.CheckedBooksCount = deletedCbl.CheckedItems.Count();
-		}
-		public void Deleted_CheckAll_Click(object sender, Avalonia.Interactivity.RoutedEventArgs e)
-		{
-			foreach (var item in deletedCbl.Items)
-				deletedCbl.SetItemChecked(item, true);
-		}
-		public void Deleted_UncheckAll_Click(object sender, Avalonia.Interactivity.RoutedEventArgs e)
-		{
-			foreach (var item in deletedCbl.Items)
-				deletedCbl.SetItemChecked(item, false);
-		}
-		public void Deleted_Save_Click(object sender, Avalonia.Interactivity.RoutedEventArgs e)
-		{
-			var libraryBooksToRestore = deletedCbl.CheckedItems.Cast<LibraryBook>().ToList();
-			var qtyChanges = libraryBooksToRestore.RestoreBooks();
-			if (qtyChanges > 0)
-				_viewModel.reload();
-		}
+		_viewModel.TrashBinViewModel.Reload();
 	}
 }

Source/HangoverAvalonia/Views/MainWindow.axaml

@@ -15,13 +15,11 @@
 
 	<TabControl Name="tabControl1" Grid.Row="0">
 		<TabControl.Styles>
-			<Style Selector="ItemsPresenter#PART_ItemsPresenter">
-				<Setter Property="Height" Value="23"/>
+			<Style Selector="TabControl /template/ ItemsPresenter#PART_ItemsPresenter">
+				<Setter Property="Height" Value="33"/>
 			</Style>
-			<Style Selector="TabItem">
-				<Setter Property="MinHeight" Value="40"/>
-				<Setter Property="Height" Value="40"/>
-				<Setter Property="Padding" Value="8,2,8,5"/>
+			<Style Selector="TabItem /template/ Border#PART_LayoutRoot">
+				<Setter Property="Height" Value="33"/>
 			</Style>
 			<Style Selector="TabItem#Header TextBlock">
 				<Setter Property="MinHeight" Value="5"/>
@@ -51,6 +49,7 @@
 				
 				<TextBox
 					Margin="0,5,0,5"
+					AcceptsReturn="True"
 					Grid.Row="2" Text="{Binding SqlQuery, Mode=OneWayToSource}" />
 				
 				<Button
@@ -73,33 +72,58 @@
 			<TabItem.Header>
 				<TextBlock FontSize="14" VerticalAlignment="Center">Deleted Books</TextBlock>
 			</TabItem.Header>
-
 			<Grid
+				DataContext="{Binding TrashBinViewModel}"
 				RowDefinitions="Auto,*,Auto">
 
 				<TextBlock
 					Grid.Row="0"
 					Margin="5"
-					Text="To restore deleted book, check box and save" />
+					Text="Check books you want to permanently delete from or restore to Libation" />
 
 				<controls:CheckedListBox
 					Grid.Row="1"
 					Margin="5,0,5,0"
 					BorderThickness="1"
 					BorderBrush="Gray"
-					Name="deletedCbl"
+					IsEnabled="{Binding	ControlsEnabled}"
 					Items="{Binding DeletedBooks}" />
 
 				<Grid
 					Grid.Row="2"
 					Margin="5"
-					ColumnDefinitions="Auto,Auto,Auto,*">
+					ColumnDefinitions="Auto,Auto,*,Auto">
 
-					<Button Grid.Column="0" Margin="0,0,20,0" Content="Check All" Click="Deleted_CheckAll_Click" />
-					<Button Grid.Column="1" Margin="0,0,20,0" Content="Uncheck All" Click="Deleted_UncheckAll_Click" />
-					<TextBlock Grid.Column="2" VerticalAlignment="Center" Text="{Binding CheckedCountText}" />
-					<Button Grid.Column="3" HorizontalAlignment="Right" Content="Save" Click="Deleted_Save_Click" />
+					<CheckBox
+						IsEnabled="{Binding	ControlsEnabled}"
+						IsThreeState="True"
+						Margin="0,0,20,0"
+						IsChecked="{Binding EverythingChecked}"
+						Content="Everything" />
 
+					<TextBlock
+						Grid.Column="1"
+						VerticalAlignment="Center"
+						Text="{Binding CheckedCountText}" />
+
+					<Button
+						IsEnabled="{Binding	ControlsEnabled}"
+						Grid.Column="2"
+						Margin="0,0,20,0"
+						HorizontalAlignment="Right"
+						VerticalAlignment="Stretch"
+						VerticalContentAlignment="Center"
+						Content="Restore"
+						Command="{Binding RestoreCheckedAsync}"/>
+
+					<Button
+						IsEnabled="{Binding	ControlsEnabled}"
+						Grid.Column="3"
+						Command="{Binding PermanentlyDeleteCheckedAsync}" >
+						<TextBlock
+							TextAlignment="Center"
+							Text="Permanently Delete&#xa;from Libation" />
+					</Button>
 				</Grid>
 			</Grid>
 		</TabItem>

Source/HangoverAvalonia/Views/MainWindow.axaml.cs

@@ -18,7 +18,6 @@ namespace HangoverAvalonia.Views
 
 		public void OnLoad()
 		{
-			deletedCbl.ItemCheck += Deleted_CheckedListBox_ItemCheck;
 			databaseTab.PropertyChanged += (_, e) => { if (e.Property.Name == nameof(TabItem.IsSelected)) databaseTab_VisibleChanged(databaseTab.IsSelected); };
 			deletedTab.PropertyChanged += (_, e) => { if (e.Property.Name == nameof(TabItem.IsSelected)) deletedTab_VisibleChanged(deletedTab.IsSelected); };
 			cliTab.PropertyChanged += (_, e) => { if (e.Property.Name == nameof(TabItem.IsSelected)) cliTab_VisibleChanged(cliTab.IsSelected); };

Source/LibationAvalonia/Controls/CheckedListBox.axaml

@@ -5,26 +5,15 @@
 			 mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
              x:Class="LibationAvalonia.Controls.CheckedListBox">
 	
-	<UserControl.Resources>
-		<RecyclePool x:Key="RecyclePool" />
-		<DataTemplate x:Key="queuedBook">
-			<CheckBox HorizontalAlignment="Stretch" Margin="10,0,0,0" Content="{Binding Item}" IsChecked="{Binding IsChecked, Mode=TwoWay}" />
-		</DataTemplate>
-		<RecyclingElementFactory x:Key="elementFactory" RecyclePool="{StaticResource RecyclePool}">
-			<RecyclingElementFactory.Templates>
-				<StaticResource x:Key="queuedBook" ResourceKey="queuedBook" />
-			</RecyclingElementFactory.Templates>
-		</RecyclingElementFactory>
-	</UserControl.Resources>
-
 	<ScrollViewer
-		Name="scroller"
 		HorizontalScrollBarVisibility="Disabled"
 		VerticalScrollBarVisibility="Auto">
-		<ItemsRepeater IsVisible="True"
-			VerticalCacheLength="1.2"
-			HorizontalCacheLength="1"
-			ItemsSource="{Binding CheckboxItems}"
-			ItemTemplate="{StaticResource elementFactory}" />
+		<ItemsControl ItemsSource="{Binding $parent[1].Items}">
+			<ItemsControl.ItemTemplate>
+				<DataTemplate>
+					<CheckBox HorizontalAlignment="Stretch" Margin="10,0,0,0" Content="{Binding Item}" IsChecked="{Binding IsChecked, Mode=TwoWay}" />
+				</DataTemplate>
+			</ItemsControl.ItemTemplate>
+		</ItemsControl>
 	</ScrollViewer>
 </UserControl>

Source/LibationAvalonia/Controls/CheckedListBox.axaml.cs

@@ -12,24 +12,10 @@ namespace LibationAvalonia.Controls
 		AvaloniaProperty.Register<CheckedListBox, AvaloniaList<CheckBoxViewModel>>(nameof(Items));
 
 		public AvaloniaList<CheckBoxViewModel> Items { get => GetValue(ItemsProperty); set => SetValue(ItemsProperty, value); }
-		private CheckedListBoxViewModel _viewModel = new();
 
 		public CheckedListBox()
 		{
 			InitializeComponent();
-			scroller.DataContext = _viewModel;
-		}
-		protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
-		{
-			if (change.Property.Name == nameof(Items) && Items != null)
-				_viewModel.CheckboxItems = Items;
-			base.OnPropertyChanged(change);
-		}
-
-		private class CheckedListBoxViewModel : ViewModelBase
-		{
-			private AvaloniaList<CheckBoxViewModel> _checkboxItems;
-			public AvaloniaList<CheckBoxViewModel> CheckboxItems { get => _checkboxItems; set => this.RaiseAndSetIfChanged(ref _checkboxItems, value); }
 		}
 	}
 

Source/LibationAvalonia/Controls/Settings/Audio.axaml

@@ -43,14 +43,40 @@
 				<controls:WheelComboBox
 					Margin="5,0,0,0"
 					Grid.Column="1"
-					SelectionChanged="Quality_SelectionChanged"
 					ItemsSource="{CompiledBinding DownloadQualities}"
 					SelectedItem="{CompiledBinding FileDownloadQuality}"/>
 			</Grid>
 
-			<Grid ColumnDefinitions="*,Auto" Margin="0,5,0,0"
-				  IsEnabled="{CompiledBinding SpatialSelected}"
+
+			<Grid ColumnDefinitions="*,*">
+
+				<CheckBox
+					IsChecked="{CompiledBinding UseWidevine, Mode=TwoWay}"
+					IsCheckedChanged="UseWidevine_IsCheckedChanged"
+					ToolTip.Tip="{CompiledBinding UseWidevineTip}">
+					<TextBlock Text="{CompiledBinding UseWidevineText}" />
+				</CheckBox>
+				
+				<CheckBox
+					Grid.Column="1"
+					HorizontalAlignment="Right"
+					ToolTip.Tip="{CompiledBinding RequestSpatialTip}"
+					IsEnabled="{CompiledBinding UseWidevine}"
+					IsChecked="{CompiledBinding RequestSpatial, Mode=TwoWay}">
+					<TextBlock Text="{CompiledBinding RequestSpatialText}" />
+				</CheckBox>
+			</Grid>
+
+			<Grid ColumnDefinitions="*,Auto"
 				  ToolTip.Tip="{CompiledBinding SpatialAudioCodecTip}">
+				<Grid.IsEnabled>
+					<MultiBinding Converter="{x:Static BoolConverters.And}">
+						<MultiBinding.Bindings>
+							<CompiledBinding Path="UseWidevine"/>
+							<CompiledBinding Path="RequestSpatial"/>
+						</MultiBinding.Bindings>
+					</MultiBinding>
+				</Grid.IsEnabled>
 				
 				<TextBlock
 					VerticalAlignment="Center"
@@ -62,6 +88,11 @@
 					ItemsSource="{CompiledBinding SpatialAudioCodecs}"
 					SelectedItem="{CompiledBinding SpatialAudioCodec}"/>
 			</Grid>
+			
+			
+			
+			
+			
 
 			<CheckBox IsChecked="{CompiledBinding CreateCueSheet, Mode=TwoWay}">
 				<TextBlock Text="{CompiledBinding CreateCueSheetText}" />

Source/LibationAvalonia/Controls/Settings/Audio.axaml.cs

@@ -22,21 +22,21 @@ namespace LibationAvalonia.Controls.Settings
 			}
 		}
 
-
-		public async void Quality_SelectionChanged(object sender, SelectionChangedEventArgs e)
+		private async void UseWidevine_IsCheckedChanged(object sender, Avalonia.Interactivity.RoutedEventArgs e)
 		{
-			if (_viewModel.SpatialSelected)
+			if (sender is CheckBox cbox && cbox.IsChecked is true)
 			{
 				using var accounts = AudibleApiStorage.GetAccountsSettingsPersister();
 
 				if (!accounts.AccountsSettings.Accounts.Any(a => a.IdentityTokens.DeviceType == AudibleApi.Resources.DeviceType))
 				{
-					await MessageBox.Show(VisualRoot as Window,
-						"Your must remove account(s) from Libation and then re-add them to enable spatial audiobook downloads.",
-						"Spatial Audio Unavailable",
+					if (VisualRoot is Window parent)
+						await MessageBox.Show(parent,
+						"Your must remove account(s) from Libation and then re-add them to enable widwvine content.",
+						"Widevine Content Unavailable",
 						MessageBoxButtons.OK);
 
-					_viewModel.FileDownloadQuality = _viewModel.DownloadQualities[1];
+					_viewModel.UseWidevine = false;
 				}
 			}
 		}

Source/LibationAvalonia/Dialogs/BookDetailsDialog.axaml.cs

@@ -114,7 +114,6 @@ Title: {title}
 Author(s): {Book.AuthorNames()}
 Narrator(s): {Book.NarratorNames()}
 Length: {(Book.LengthInMinutes == 0 ? "" : $"{Book.LengthInMinutes / 60} hr {Book.LengthInMinutes % 60} min")}
-Audio Bitrate: {Book.AudioFormat}
 Category: {string.Join(", ", Book.LowestCategoryNames())}
 Purchase Date: {libraryBook.DateAdded:d}
 Language: {Book.Language}

Source/LibationAvalonia/Dialogs/MessageBoxWindow.axaml

@@ -14,11 +14,11 @@
 			<StackPanel DockPanel.Dock="Top" Orientation="Horizontal"
 				VerticalAlignment="Top">
 			
-				<Panel Grid.Column="0" Margin="5,0,5,0" VerticalAlignment="Top">				
-					<Image IsVisible="{Binding IsAsterisk}" Stretch="None" Source="/Assets/MBIcons/Asterisk.png"/>
-					<Image IsVisible="{Binding IsError}" Stretch="None" Source="/Assets/MBIcons/error.png"/>
-					<Image IsVisible="{Binding IsQuestion}" Stretch="None" Source="/Assets/MBIcons/Question.png"/>
-					<Image IsVisible="{Binding IsExclamation}" Stretch="None" Source="/Assets/MBIcons/Exclamation.png"/>
+				<Panel Height="32" Width="32" Grid.Column="0" Margin="5,0,5,0" VerticalAlignment="Top">				
+					<Image IsVisible="{Binding IsAsterisk}" Stretch="Uniform" Source="/Assets/MBIcons/Asterisk_64.png"/>
+					<Image IsVisible="{Binding IsError}" Stretch="Uniform" Source="/Assets/MBIcons/Error_64.png"/>
+					<Image IsVisible="{Binding IsQuestion}" Stretch="Uniform" Source="/Assets/MBIcons/Question_64.png"/>
+					<Image IsVisible="{Binding IsExclamation}" Stretch="Uniform" Source="/Assets/MBIcons/Exclamation_64.png"/>
 				</Panel>
 			
 				<TextBlock Margin="5,0,0,0" Name="messageTextBlock" MinHeight="45" MinWidth="193" TextWrapping="WrapWithOverflow" HorizontalAlignment="Left" VerticalAlignment="Top" FontSize="12" Text="{Binding Message}" />

Source/LibationAvalonia/LibationAvalonia.csproj

@@ -41,10 +41,10 @@
 		<None Remove="Assets\img-coverart-prod-unavailable_500x500.jpg" />
 		<None Remove="Assets\img-coverart-prod-unavailable_80x80.jpg" />
 		<None Remove="Assets\1x1.png" />
-		<None Remove="Assets\MBIcons\Asterisk.png" />
-		<None Remove="Assets\MBIcons\error.png" />
-		<None Remove="Assets\MBIcons\Exclamation.png" />
-		<None Remove="Assets\MBIcons\Question.png" />
+		<None Remove="Assets\MBIcons\Asterisk_64.png" />
+		<None Remove="Assets\MBIcons\Error_64.png" />
+		<None Remove="Assets\MBIcons\Exclamation_64.png" />
+		<None Remove="Assets\MBIcons\Question_64.png" />
 	</ItemGroup>
 
 	<ItemGroup>
@@ -73,14 +73,13 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Avalonia.Controls.ColorPicker" Version="11.2.8" />
-		<PackageReference Include="Avalonia.Diagnostics" Version="11.2.8" Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'" />
-		<PackageReference Include="Avalonia" Version="11.2.8" />
-		<PackageReference Include="Avalonia.Controls.DataGrid" Version="11.2.8" />
-		<PackageReference Include="Avalonia.Controls.ItemsRepeater" Version="11.1.5" />
-		<PackageReference Include="Avalonia.Desktop" Version="11.2.8" />
-		<PackageReference Include="Avalonia.ReactiveUI" Version="11.2.8" />
-		<PackageReference Include="Avalonia.Themes.Fluent" Version="11.2.8" />
+		<PackageReference Include="Avalonia.Controls.ColorPicker" Version="11.3.0" />
+		<PackageReference Include="Avalonia.Diagnostics" Version="11.3.0" Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'" />
+		<PackageReference Include="Avalonia" Version="11.3.0" />
+		<PackageReference Include="Avalonia.Controls.DataGrid" Version="11.3.0" />
+		<PackageReference Include="Avalonia.Desktop" Version="11.3.0" />
+		<PackageReference Include="Avalonia.ReactiveUI" Version="11.3.0" />
+		<PackageReference Include="Avalonia.Themes.Fluent" Version="11.3.0" />
 	</ItemGroup>
 
 	<ItemGroup>

Source/LibationAvalonia/ViewModels/MainVM.ProcessQueue.cs

@@ -40,6 +40,12 @@ namespace LibationAvalonia.ViewModels
 				if (libraryBooks.Length == 1)
 				{
 					var item = libraryBooks[0];
+
+					//Remove this item from the queue if it's already present and completed.
+					//Only do this when adding a single book at a time to prevent accidental
+					//extra downloads when queueing in batches.
+					ProcessQueue.RemoveCompleted(item);
+
 					if (item.Book.UserDefinedItem.BookStatus is LiberatedStatus.NotLiberated or LiberatedStatus.PartialDownload)
 					{
 						Serilog.Log.Logger.Information("Begin single book backup of {libraryBook}", item);

Source/LibationAvalonia/ViewModels/ProcessQueueViewModel.cs

@@ -130,6 +130,11 @@ namespace LibationAvalonia.ViewModels
 				return true;
 		}
 
+		public bool RemoveCompleted(LibraryBook libraryBook)
+			=> Queue.FirstOrDefault(b => b?.LibraryBook?.Book?.AudibleProductId == libraryBook.Book.AudibleProductId) is ProcessBookViewModel entry
+			&& entry.Status is ProcessBookStatus.Completed
+			&& Queue.RemoveCompleted(entry);
+
 		public void AddDownloadPdf(LibraryBook libraryBook)
 			=> AddDownloadPdf(new List<LibraryBook>() { libraryBook });
 

Source/LibationAvalonia/ViewModels/Settings/AudioSettingsVM.cs

@@ -67,6 +67,8 @@ namespace LibationAvalonia.ViewModels.Settings
 			FileDownloadQuality = DownloadQualities.SingleOrDefault(s => s.Value == config.FileDownloadQuality) ?? DownloadQualities[0];
 			SelectedSampleRate = SampleRates.SingleOrDefault(s => s.Value == config.MaxSampleRate) ?? SampleRates[0];
 			SelectedEncoderQuality = config.LameEncoderQuality;
+			UseWidevine = config.UseWidevine;
+			RequestSpatial = config.RequestSpatial;
 		}
 
 		public void SaveSettings(Configuration config)
@@ -96,12 +98,13 @@ namespace LibationAvalonia.ViewModels.Settings
 			config.MaxSampleRate = SelectedSampleRate?.Value ?? config.MaxSampleRate;
 			config.FileDownloadQuality = FileDownloadQuality?.Value ?? config.FileDownloadQuality;
 			config.SpatialAudioCodec = SpatialAudioCodec?.Value ?? config.SpatialAudioCodec;
+			config.UseWidevine = UseWidevine;
+			config.RequestSpatial = RequestSpatial;
 		}
 
 		public AvaloniaList<EnumDisplay<Configuration.DownloadQuality>> DownloadQualities { get; } = new([
 					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.Normal),
 					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.High),
-					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.Spatial, "Spatial (if available)"),
 				]);
 		public AvaloniaList<EnumDisplay<Configuration.SpatialCodec>> SpatialAudioCodecs { get; } = new([
 					new EnumDisplay<Configuration.SpatialCodec>(Configuration.SpatialCodec.EC_3, "Dolby Digital Plus (E-AC-3)"),
@@ -109,6 +112,10 @@ namespace LibationAvalonia.ViewModels.Settings
 				]);
 		public AvaloniaList<Configuration.ClipBookmarkFormat> ClipBookmarkFormats { get; } = new(Enum<Configuration.ClipBookmarkFormat>.GetValues());
 		public string FileDownloadQualityText { get; } = Configuration.GetDescription(nameof(Configuration.FileDownloadQuality));
+		public string UseWidevineText { get; } = Configuration.GetDescription(nameof(Configuration.UseWidevine));
+		public string UseWidevineTip { get; } = Configuration.GetHelpText(nameof(Configuration.UseWidevine));
+		public string RequestSpatialText { get; } = Configuration.GetDescription(nameof(Configuration.RequestSpatial));
+		public string RequestSpatialTip { get; } = Configuration.GetHelpText(nameof(Configuration.RequestSpatial));
 		public string SpatialAudioCodecText { get; } = Configuration.GetDescription(nameof(Configuration.SpatialAudioCodec));
 		public string SpatialAudioCodecTip { get; } = Configuration.GetHelpText(nameof(Configuration.SpatialAudioCodec));
 		public string CreateCueSheetText { get; } = Configuration.GetDescription(nameof(Configuration.CreateCueSheet));
@@ -133,19 +140,13 @@ namespace LibationAvalonia.ViewModels.Settings
 		public string RetainAaxFileTip => Configuration.GetHelpText(nameof(RetainAaxFile));
 		public bool DownloadClipsBookmarks { get => _downloadClipsBookmarks; set => this.RaiseAndSetIfChanged(ref _downloadClipsBookmarks, value); }
 
-		public bool SpatialSelected { get; private set; }
 
-		private EnumDisplay<Configuration.DownloadQuality>? _fileDownloadQuality;
-		public EnumDisplay<Configuration.DownloadQuality> FileDownloadQuality
-		{
-			get => _fileDownloadQuality ?? DownloadQualities[0];
-			set
-			{
-				SpatialSelected = value?.Value == Configuration.DownloadQuality.Spatial;
-				this.RaiseAndSetIfChanged(ref _fileDownloadQuality, value);
-				this.RaisePropertyChanged(nameof(SpatialSelected));
-			}
-		}
+		private bool _useWidevine;
+		private bool _requestSpatial;
+		public bool UseWidevine { get => _useWidevine; set => this.RaiseAndSetIfChanged(ref _useWidevine, value); }
+		public bool RequestSpatial { get => _requestSpatial; set => this.RaiseAndSetIfChanged(ref _requestSpatial, value); }
+
+		public EnumDisplay<Configuration.DownloadQuality> FileDownloadQuality { get; set; }
 		public EnumDisplay<Configuration.SpatialCodec> SpatialAudioCodec { get; set; }
 		public Configuration.ClipBookmarkFormat ClipBookmarkFormat { get; set; }
 		public bool MergeOpeningAndEndCredits { get; set; }

Source/LibationAvalonia/Views/ProcessQueueControl.axaml

@@ -9,24 +9,16 @@
 	mc:Ignorable="d" d:DesignWidth="400" d:DesignHeight="650"
 	Background="{DynamicResource SystemRegionColor}"
 	x:Class="LibationAvalonia.Views.ProcessQueueControl">
-
 	<UserControl.Resources>
 		<views:DecimalConverter x:Key="myConverter" />
-		<RecyclePool x:Key="RecyclePool" />
-		<DataTemplate x:Key="queuedBook">
-			<views:ProcessBookControl />
-		</DataTemplate>
-		<RecyclingElementFactory x:Key="elementFactory" RecyclePool="{StaticResource RecyclePool}">
-			<RecyclingElementFactory.Templates>
-				<StaticResource x:Key="queuedBook" ResourceKey="queuedBook" />
-			</RecyclingElementFactory.Templates>
-		</RecyclingElementFactory>
 	</UserControl.Resources>
-
 	<Grid RowDefinitions="*,Auto">
 		<TabControl Grid.Row="0">
 			<TabControl.Styles>
-				<Style Selector="ItemsPresenter#PART_ItemsPresenter">
+				<Style Selector="TabControl /template/ ItemsPresenter#PART_ItemsPresenter">
+					<Setter Property="Height" Value="33"/>
+				</Style>
+				<Style Selector="TabItem /template/ Border#PART_LayoutRoot">
 					<Setter Property="Height" Value="33"/>
 				</Style>
 			</TabControl.Styles>
@@ -42,14 +34,13 @@
 							HorizontalScrollBarVisibility="Disabled"
 							VerticalScrollBarVisibility="Auto"
 							AllowAutoHide="False">
-							<ItemsRepeater IsVisible="True"
-								Grid.Column="0"
-								Name="repeater"
-								VerticalCacheLength="1.2"
-								HorizontalCacheLength="1"
-								Background="Transparent"
-								ItemsSource="{Binding Items}"
-								ItemTemplate="{StaticResource elementFactory}" />
+							<ItemsControl ItemsSource="{Binding Items}">
+								<ItemsControl.ItemTemplate>
+									<DataTemplate>
+										<views:ProcessBookControl DataContext="{Binding}" />
+									</DataTemplate>
+								</ItemsControl.ItemTemplate>
+							</ItemsControl>
 						</ScrollViewer>
 					</Border>
 					<Grid Grid.Column="0" Grid.Row="1" ColumnDefinitions="*,Auto,Auto">

Source/LibationFileManager/Configuration.HelpText.cs

@@ -89,6 +89,24 @@ namespace LibationFileManager
 
                 AC-4 cannot be converted to MP3.
                 """ },
+            {nameof(UseWidevine), """
+                Some audiobooks are only delivered in the highest
+                available quality with special, third-party content
+                protection. Enabling this option will make Libation
+                request audiobooks with Widevine DRM, which may
+                yield higher quality audiobook files. If they are
+                higher quality, however, they will also be encoded
+                with a somewhat uncommon codec (xHE-AAC USAC)
+                which you may have difficulty playing.
+
+                This must be enable to download spatial audiobooks.
+                """ },
+            {nameof(RequestSpatial), """
+                If selected, Libation will request audiobooks in the
+                Dolby Atmos 'Spatial Audio' format. Audiobooks which
+                don't have a spatial audio version will be download
+                as usual based on your other file quality settings.
+                """ },
         }
         .AsReadOnly();
 

Source/LibationFileManager/Configuration.PersistentSettings.cs

@@ -246,8 +246,7 @@ namespace LibationFileManager
 		public enum DownloadQuality
 		{
 			High,
-			Normal,
-			Spatial
+			Normal
 		}
 
 		[JsonConverter(typeof(StringEnumConverter))]
@@ -257,6 +256,12 @@ namespace LibationFileManager
 			AC_4
 		}
 
+		[Description("Use widevine DRM")]
+		public bool UseWidevine { get => GetNonString(defaultValue: true); set => SetNonString(value); }
+
+		[Description("Request Spatial Audio")]
+		public bool RequestSpatial { get => GetNonString(defaultValue: true); set => SetNonString(value); }
+
 		[Description("Spatial audio codec:")]
 		public SpatialCodec SpatialAudioCodec { get => GetNonString(defaultValue: SpatialCodec.EC_3); set => SetNonString(value); }
 

Source/LibationFileManager/Templates/ContributorDto.cs

@@ -24,10 +24,12 @@ public class ContributorDto : IFormattable
 
 		//Single-word names parse as first names. Use it as last name.
 		var lastName = string.IsNullOrWhiteSpace(HumanName.Last) ? HumanName.First : HumanName.Last;
+  		//Because of the above, if the have only a first name, then we'd double the name as "FirstName FirstName", so clear the first name in that situation.
+  		var firstName = string.IsNullOrWhiteSpace(HumanName.Last) ? HumanName.Last : HumanName.First;
 
 		return format
 			.Replace("{T}", HumanName.Title)
-			.Replace("{F}", HumanName.First)
+			.Replace("{F}", firstName)
 			.Replace("{M}", HumanName.Middle)
 			.Replace("{L}", lastName)
 			.Replace("{S}", HumanName.Suffix)

Source/LibationFileManager/Templates/LibraryBookDto.cs

@@ -27,9 +27,10 @@ public class BookDto
 	public bool IsPodcastParent { get; set; }
 	public bool IsPodcast { get; set; }
 
-	public int BitRate { get; set; }
-	public int SampleRate { get; set; }
-	public int Channels { get; set; }
+	public int? BitRate { get; set; }
+	public int? SampleRate { get; set; }
+	public int? Channels { get; set; }
+	public string? Codec { get; set; }
 	public DateTime FileDate { get; set; } = DateTime.Now;
 	public DateTime? DatePublished { get; set; }
 	public string? Language { get; set; }

Source/LibationFileManager/Templates/TemplateTags.cs

@@ -36,9 +36,10 @@ namespace LibationFileManager.Templates
 		public static TemplateTags Series { get; } = new TemplateTags("series", "All series to which the book belongs (if any)");
 		public static TemplateTags FirstSeries { get; } = new TemplateTags("first series", "First series");
 		public static TemplateTags SeriesNumber { get; } = new TemplateTags("series#", "Number order in series (alias for <first series[{#}]>");
-		public static TemplateTags Bitrate { get; } = new TemplateTags("bitrate", "File's orig. bitrate");
-		public static TemplateTags SampleRate { get; } = new TemplateTags("samplerate", "File's orig. sample rate");
-		public static TemplateTags Channels { get; } = new TemplateTags("channels", "Number of audio channels");
+		public static TemplateTags Bitrate { get; } = new TemplateTags("bitrate", "Audiobook's source bitrate");
+		public static TemplateTags SampleRate { get; } = new TemplateTags("samplerate", "Audiobook's source sample rate");
+		public static TemplateTags Channels { get; } = new TemplateTags("channels", "Audiobook's source audio channel count");
+		public static TemplateTags Codec { get; } = new TemplateTags("codec", "Audiobook's source codec");
 		public static TemplateTags Account { get; } = new TemplateTags("account", "Audible account of this book");
 		public static TemplateTags AccountNickname { get; } = new TemplateTags("account nickname", "Audible account nickname of this book");
 		public static TemplateTags Locale { get; } = new("locale", "Region/country");

Source/LibationFileManager/Templates/Templates.cs

@@ -271,9 +271,6 @@ namespace LibationFileManager.Templates
 			{ TemplateTags.Language, lb => lb.Language },
 			//Don't allow formatting of LanguageShort
 			{ TemplateTags.LanguageShort, lb =>lb.Language, getLanguageShort },
-			{ TemplateTags.Bitrate, lb => (int?)(lb.IsPodcastParent ? null : lb.BitRate) },
-			{ TemplateTags.SampleRate, lb => (int?)(lb.IsPodcastParent ? null : lb.SampleRate) },
-			{ TemplateTags.Channels, lb => (int?)(lb.IsPodcastParent ? null : lb.Channels) },
 			{ TemplateTags.Account, lb => lb.Account },
 			{ TemplateTags.AccountNickname, lb => lb.AccountNickname },
 			{ TemplateTags.Locale, lb => lb.Locale },
@@ -281,7 +278,16 @@ namespace LibationFileManager.Templates
 			{ TemplateTags.DatePublished, lb => lb.DatePublished },
 			{ TemplateTags.DateAdded, lb => lb.DateAdded },
 			{ TemplateTags.FileDate, lb => lb.FileDate },
-			};
+		};
+
+		private static readonly PropertyTagCollection<LibraryBookDto> audioFilePropertyTags =
+			new(caseSensative: true, StringFormatter, IntegerFormatter)
+		{
+			{ TemplateTags.Bitrate, lb => lb.BitRate },
+			{ TemplateTags.SampleRate, lb => lb.SampleRate },
+			{ TemplateTags.Channels, lb => lb.Channels },
+			{ TemplateTags.Codec, lb => lb.Codec },
+		};
 
 		private static readonly List<TagCollection> chapterPropertyTags = new()
 		{
@@ -376,8 +382,7 @@ namespace LibationFileManager.Templates
 			public static string Name { get; } = "Folder Template";
 			public static string Description { get; } = Configuration.GetDescription(nameof(Configuration.FolderTemplate)) ?? "";
 			public static string DefaultTemplate { get; } = "<title short> [<id>]";
-			public static IEnumerable<TagCollection> TagCollections
-				=> new TagCollection[] { filePropertyTags, conditionalTags, folderConditionalTags };
+			public static IEnumerable<TagCollection> TagCollections { get; } = [filePropertyTags, conditionalTags, folderConditionalTags];
 
 			public override IEnumerable<string> Errors
 				=> TemplateText?.Length >= 2 && Path.IsPathFullyQualified(TemplateText) ? base.Errors.Append(ERROR_FULL_PATH_IS_INVALID) : base.Errors;
@@ -396,7 +401,7 @@ namespace LibationFileManager.Templates
 			public static string Name { get; } = "File Template";
 			public static string Description { get; } = Configuration.GetDescription(nameof(Configuration.FileTemplate)) ?? "";
 			public static string DefaultTemplate { get; } = "<title> [<id>]";
-			public static IEnumerable<TagCollection> TagCollections { get; } = new TagCollection[] { filePropertyTags, conditionalTags };
+			public static IEnumerable<TagCollection> TagCollections { get; } = [filePropertyTags, audioFilePropertyTags, conditionalTags];
 		}
 
 		public class ChapterFileTemplate : Templates, ITemplate
@@ -404,7 +409,8 @@ namespace LibationFileManager.Templates
 			public static string Name { get; } = "Chapter File Template";
 			public static string Description { get; } = Configuration.GetDescription(nameof(Configuration.ChapterFileTemplate)) ?? "";
 			public static string DefaultTemplate { get; } = "<title> [<id>] - <ch# 0> - <ch title>";
-			public static IEnumerable<TagCollection> TagCollections { get; } = chapterPropertyTags.Append(filePropertyTags).Append(conditionalTags);
+			public static IEnumerable<TagCollection> TagCollections { get; }
+				= chapterPropertyTags.Append(filePropertyTags).Append(audioFilePropertyTags).Append(conditionalTags);
 
 			public override IEnumerable<string> Warnings
 				=> NamingTemplate.TagsInUse.Any(t => t.TagName.In(TemplateTags.ChNumber.TagName, TemplateTags.ChNumber0.TagName))

Source/LibationWinForms/Dialogs/BookDetailsDialog.cs

@@ -49,7 +49,6 @@ Title: {title}
 Author(s): {Book.AuthorNames()}
 Narrator(s): {Book.NarratorNames()}
 Length: {(Book.LengthInMinutes == 0 ? "" : $"{Book.LengthInMinutes / 60} hr {Book.LengthInMinutes % 60} min")}
-Audio Bitrate: {Book.AudioFormat}
 Category: {string.Join(", ", Book.LowestCategoryNames())}
 Purchase Date: {_libraryBook.DateAdded:d}
 Language: {Book.Language}

Source/LibationWinForms/Dialogs/MessageBoxAlertAdminDialog.cs

@@ -30,7 +30,8 @@ namespace LibationWinForms.Dialogs
 				return;
 
 			System.Media.SystemSounds.Hand.Play();
-			pictureBox1.Image = SystemIcons.Error.ToBitmap();
+			//This is a different (and newer) icon from SystemIcons.Error
+			pictureBox1.Image = SystemIcons.GetStockIcon(StockIconId.Error).ToBitmap();
 		}
 
 		private void githubLink_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)

Source/LibationWinForms/Dialogs/SettingsDialog.AudioSettings.cs

@@ -23,6 +23,8 @@ namespace LibationWinForms.Dialogs
 			this.stripAudibleBrandingCbox.Text = desc(nameof(config.StripAudibleBrandAudio));
 			this.stripUnabridgedCbox.Text = desc(nameof(config.StripUnabridged));
 			this.moveMoovAtomCbox.Text = desc(nameof(config.MoveMoovToBeginning));
+			this.useWidevineCbox.Text = desc(nameof(config.UseWidevine));
+			this.requestSpatialCbox.Text = desc(nameof(config.RequestSpatial));
 			this.spatialCodecLbl.Text = desc(nameof(config.SpatialAudioCodec));
 
 			toolTip.SetToolTip(combineNestedChapterTitlesCbox, Configuration.GetHelpText(nameof(config.CombineNestedChapterTitles)));
@@ -34,6 +36,8 @@ namespace LibationWinForms.Dialogs
 			toolTip.SetToolTip(mergeOpeningEndCreditsCbox, Configuration.GetHelpText(nameof(config.MergeOpeningAndEndCredits)));
 			toolTip.SetToolTip(retainAaxFileCbox, Configuration.GetHelpText(nameof(config.RetainAaxFile)));
 			toolTip.SetToolTip(stripAudibleBrandingCbox, Configuration.GetHelpText(nameof(config.StripAudibleBrandAudio)));
+			toolTip.SetToolTip(useWidevineCbox, Configuration.GetHelpText(nameof(config.UseWidevine)));
+			toolTip.SetToolTip(requestSpatialCbox, Configuration.GetHelpText(nameof(config.RequestSpatial)));
 			toolTip.SetToolTip(spatialCodecLbl, Configuration.GetHelpText(nameof(config.SpatialAudioCodec)));
 			toolTip.SetToolTip(spatialAudioCodecCb, Configuration.GetHelpText(nameof(config.SpatialAudioCodec)));
 
@@ -41,7 +45,6 @@ namespace LibationWinForms.Dialogs
 				[
 					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.Normal),
 					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.High),
-					new EnumDisplay<Configuration.DownloadQuality>(Configuration.DownloadQuality.Spatial, "Spatial (if available)"),
 				]);
 
 			spatialAudioCodecCb.Items.AddRange(
@@ -76,6 +79,8 @@ namespace LibationWinForms.Dialogs
 			downloadClipsBookmarksCbox.Checked = config.DownloadClipsBookmarks;
 			fileDownloadQualityCb.SelectedItem = config.FileDownloadQuality;
 			spatialAudioCodecCb.SelectedItem = config.SpatialAudioCodec;
+			useWidevineCbox.Checked = config.UseWidevine;
+			requestSpatialCbox.Checked = config.RequestSpatial;
 
 			clipsBookmarksFormatCb.SelectedItem = config.ClipsBookmarksFileFormat;
 			retainAaxFileCbox.Checked = config.RetainAaxFile;
@@ -118,6 +123,8 @@ namespace LibationWinForms.Dialogs
 			config.DownloadCoverArt = downloadCoverArtCbox.Checked;
 			config.DownloadClipsBookmarks = downloadClipsBookmarksCbox.Checked;
 			config.FileDownloadQuality = ((EnumDisplay<Configuration.DownloadQuality>)fileDownloadQualityCb.SelectedItem).Value;
+			config.UseWidevine = useWidevineCbox.Checked;
+			config.RequestSpatial = requestSpatialCbox.Checked;
 			config.SpatialAudioCodec = ((EnumDisplay<Configuration.SpatialCodec>)spatialAudioCodecCb.SelectedItem).Value;
 			config.ClipsBookmarksFileFormat = (Configuration.ClipBookmarkFormat)clipsBookmarksFormatCb.SelectedItem;
 			config.RetainAaxFile = retainAaxFileCbox.Checked;
@@ -140,7 +147,6 @@ namespace LibationWinForms.Dialogs
 			config.ChapterTitleTemplate = chapterTitleTemplateTb.Text;
 		}
 
-
 		private void downloadClipsBookmarksCbox_CheckedChanged(object sender, EventArgs e)
 		{
 			clipsBookmarksFormatCb.Enabled = downloadClipsBookmarksCbox.Checked;
@@ -190,27 +196,28 @@ namespace LibationWinForms.Dialogs
 			}
 		}
 
-		private void fileDownloadQualityCb_SelectedIndexChanged(object sender, EventArgs e)
-		{
-			var selectedSpatial = fileDownloadQualityCb.SelectedItem.Equals(Configuration.DownloadQuality.Spatial);
 
-			if (selectedSpatial)
+
+		private void useWidevineCbox_CheckedChanged(object sender, EventArgs e)
+		{
+			if (useWidevineCbox.Checked)
 			{
 				using var accounts = AudibleApiStorage.GetAccountsSettingsPersister();
 
 				if (!accounts.AccountsSettings.Accounts.Any(a => a.IdentityTokens.DeviceType == AudibleApi.Resources.DeviceType))
 				{
 					MessageBox.Show(this,
-						"Your must remove account(s) from Libation and then re-add them to enable spatial audiobook downloads.",
-						"Spatial Audio Unavailable",
+						"Your must remove account(s) from Libation and then re-add them to enable widwvine content.",
+						"Widevine Content Unavailable",
 						MessageBoxButtons.OK);
 
-					fileDownloadQualityCb.SelectedItem = Configuration.DownloadQuality.High;
+					useWidevineCbox.Checked = false;
 					return;
 				}
 			}
-
-			spatialCodecLbl.Enabled = spatialAudioCodecCb.Enabled = selectedSpatial;
+			requestSpatialCbox.Enabled = useWidevineCbox.Checked;
+			spatialCodecLbl.Enabled = spatialAudioCodecCb.Enabled = useWidevineCbox.Checked && requestSpatialCbox.Checked;
 		}
+
 	}
 }

Source/LibationWinForms/Dialogs/SettingsDialog.Designer.cs

@@ -84,6 +84,8 @@
 			folderTemplateTb = new System.Windows.Forms.TextBox();
 			folderTemplateLbl = new System.Windows.Forms.Label();
 			tab4AudioFileOptions = new System.Windows.Forms.TabPage();
+			requestSpatialCbox = new System.Windows.Forms.CheckBox();
+			useWidevineCbox = new System.Windows.Forms.CheckBox();
 			spatialAudioCodecCb = new System.Windows.Forms.ComboBox();
 			spatialCodecLbl = new System.Windows.Forms.Label();
 			moveMoovAtomCbox = new System.Windows.Forms.CheckBox();
@@ -306,7 +308,7 @@
 			allowLibationFixupCbox.AutoSize = true;
 			allowLibationFixupCbox.Checked = true;
 			allowLibationFixupCbox.CheckState = System.Windows.Forms.CheckState.Checked;
-			allowLibationFixupCbox.Location = new System.Drawing.Point(19, 205);
+			allowLibationFixupCbox.Location = new System.Drawing.Point(19, 230);
 			allowLibationFixupCbox.Name = "allowLibationFixupCbox";
 			allowLibationFixupCbox.Size = new System.Drawing.Size(162, 19);
 			allowLibationFixupCbox.TabIndex = 11;
@@ -772,6 +774,8 @@
 			// tab4AudioFileOptions
 			// 
 			tab4AudioFileOptions.AutoScroll = true;
+			tab4AudioFileOptions.Controls.Add(requestSpatialCbox);
+			tab4AudioFileOptions.Controls.Add(useWidevineCbox);
 			tab4AudioFileOptions.Controls.Add(spatialAudioCodecCb);
 			tab4AudioFileOptions.Controls.Add(spatialCodecLbl);
 			tab4AudioFileOptions.Controls.Add(moveMoovAtomCbox);
@@ -798,11 +802,38 @@
 			tab4AudioFileOptions.Text = "Audio File Options";
 			tab4AudioFileOptions.UseVisualStyleBackColor = true;
 			// 
+			// requestSpatialCbox
+			// 
+			requestSpatialCbox.AutoSize = true;
+			requestSpatialCbox.CheckAlign = System.Drawing.ContentAlignment.MiddleRight;
+			requestSpatialCbox.Checked = true;
+			requestSpatialCbox.CheckState = System.Windows.Forms.CheckState.Checked;
+			requestSpatialCbox.Location = new System.Drawing.Point(284, 35);
+			requestSpatialCbox.Name = "requestSpatialCbox";
+			requestSpatialCbox.Size = new System.Drawing.Size(138, 19);
+			requestSpatialCbox.TabIndex = 29;
+			requestSpatialCbox.Text = "[RequestSpatial desc]";
+			requestSpatialCbox.UseVisualStyleBackColor = true;
+			requestSpatialCbox.CheckedChanged += useWidevineCbox_CheckedChanged;
+			// 
+			// useWidevineCbox
+			// 
+			useWidevineCbox.AutoSize = true;
+			useWidevineCbox.Checked = true;
+			useWidevineCbox.CheckState = System.Windows.Forms.CheckState.Checked;
+			useWidevineCbox.Location = new System.Drawing.Point(19, 35);
+			useWidevineCbox.Name = "useWidevineCbox";
+			useWidevineCbox.Size = new System.Drawing.Size(129, 19);
+			useWidevineCbox.TabIndex = 28;
+			useWidevineCbox.Text = "[UseWidevine desc]";
+			useWidevineCbox.UseVisualStyleBackColor = true;
+			useWidevineCbox.CheckedChanged += useWidevineCbox_CheckedChanged;
+			// 
 			// spatialAudioCodecCb
 			// 
 			spatialAudioCodecCb.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
 			spatialAudioCodecCb.FormattingEnabled = true;
-			spatialAudioCodecCb.Location = new System.Drawing.Point(249, 35);
+			spatialAudioCodecCb.Location = new System.Drawing.Point(249, 60);
 			spatialAudioCodecCb.Margin = new System.Windows.Forms.Padding(3, 3, 5, 3);
 			spatialAudioCodecCb.Name = "spatialAudioCodecCb";
 			spatialAudioCodecCb.Size = new System.Drawing.Size(173, 23);
@@ -811,7 +842,7 @@
 			// spatialCodecLbl
 			// 
 			spatialCodecLbl.AutoSize = true;
-			spatialCodecLbl.Location = new System.Drawing.Point(19, 37);
+			spatialCodecLbl.Location = new System.Drawing.Point(19, 62);
 			spatialCodecLbl.Name = "spatialCodecLbl";
 			spatialCodecLbl.Size = new System.Drawing.Size(143, 15);
 			spatialCodecLbl.TabIndex = 24;
@@ -836,7 +867,6 @@
 			fileDownloadQualityCb.Name = "fileDownloadQualityCb";
 			fileDownloadQualityCb.Size = new System.Drawing.Size(130, 23);
 			fileDownloadQualityCb.TabIndex = 1;
-			fileDownloadQualityCb.SelectedIndexChanged += fileDownloadQualityCb_SelectedIndexChanged;
 			// 
 			// fileDownloadQualityLbl
 			// 
@@ -851,7 +881,7 @@
 			// combineNestedChapterTitlesCbox
 			// 
 			combineNestedChapterTitlesCbox.AutoSize = true;
-			combineNestedChapterTitlesCbox.Location = new System.Drawing.Point(19, 181);
+			combineNestedChapterTitlesCbox.Location = new System.Drawing.Point(19, 206);
 			combineNestedChapterTitlesCbox.Name = "combineNestedChapterTitlesCbox";
 			combineNestedChapterTitlesCbox.Size = new System.Drawing.Size(217, 19);
 			combineNestedChapterTitlesCbox.TabIndex = 10;
@@ -862,7 +892,7 @@
 			// 
 			clipsBookmarksFormatCb.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
 			clipsBookmarksFormatCb.FormattingEnabled = true;
-			clipsBookmarksFormatCb.Location = new System.Drawing.Point(285, 107);
+			clipsBookmarksFormatCb.Location = new System.Drawing.Point(285, 132);
 			clipsBookmarksFormatCb.Name = "clipsBookmarksFormatCb";
 			clipsBookmarksFormatCb.Size = new System.Drawing.Size(67, 23);
 			clipsBookmarksFormatCb.TabIndex = 6;
@@ -870,7 +900,7 @@
 			// downloadClipsBookmarksCbox
 			// 
 			downloadClipsBookmarksCbox.AutoSize = true;
-			downloadClipsBookmarksCbox.Location = new System.Drawing.Point(19, 109);
+			downloadClipsBookmarksCbox.Location = new System.Drawing.Point(19, 134);
 			downloadClipsBookmarksCbox.Name = "downloadClipsBookmarksCbox";
 			downloadClipsBookmarksCbox.Size = new System.Drawing.Size(248, 19);
 			downloadClipsBookmarksCbox.TabIndex = 5;
@@ -883,7 +913,7 @@
 			audiobookFixupsGb.Controls.Add(splitFilesByChapterCbox);
 			audiobookFixupsGb.Controls.Add(stripUnabridgedCbox);
 			audiobookFixupsGb.Controls.Add(stripAudibleBrandingCbox);
-			audiobookFixupsGb.Location = new System.Drawing.Point(6, 229);
+			audiobookFixupsGb.Location = new System.Drawing.Point(6, 254);
 			audiobookFixupsGb.Name = "audiobookFixupsGb";
 			audiobookFixupsGb.Size = new System.Drawing.Size(416, 114);
 			audiobookFixupsGb.TabIndex = 19;
@@ -1324,7 +1354,7 @@
 			// mergeOpeningEndCreditsCbox
 			// 
 			mergeOpeningEndCreditsCbox.AutoSize = true;
-			mergeOpeningEndCreditsCbox.Location = new System.Drawing.Point(19, 157);
+			mergeOpeningEndCreditsCbox.Location = new System.Drawing.Point(19, 182);
 			mergeOpeningEndCreditsCbox.Name = "mergeOpeningEndCreditsCbox";
 			mergeOpeningEndCreditsCbox.Size = new System.Drawing.Size(198, 19);
 			mergeOpeningEndCreditsCbox.TabIndex = 9;
@@ -1334,7 +1364,7 @@
 			// retainAaxFileCbox
 			// 
 			retainAaxFileCbox.AutoSize = true;
-			retainAaxFileCbox.Location = new System.Drawing.Point(19, 133);
+			retainAaxFileCbox.Location = new System.Drawing.Point(19, 158);
 			retainAaxFileCbox.Name = "retainAaxFileCbox";
 			retainAaxFileCbox.Size = new System.Drawing.Size(131, 19);
 			retainAaxFileCbox.TabIndex = 8;
@@ -1347,7 +1377,7 @@
 			downloadCoverArtCbox.AutoSize = true;
 			downloadCoverArtCbox.Checked = true;
 			downloadCoverArtCbox.CheckState = System.Windows.Forms.CheckState.Checked;
-			downloadCoverArtCbox.Location = new System.Drawing.Point(19, 85);
+			downloadCoverArtCbox.Location = new System.Drawing.Point(19, 110);
 			downloadCoverArtCbox.Name = "downloadCoverArtCbox";
 			downloadCoverArtCbox.Size = new System.Drawing.Size(162, 19);
 			downloadCoverArtCbox.TabIndex = 4;
@@ -1360,7 +1390,7 @@
 			createCueSheetCbox.AutoSize = true;
 			createCueSheetCbox.Checked = true;
 			createCueSheetCbox.CheckState = System.Windows.Forms.CheckState.Checked;
-			createCueSheetCbox.Location = new System.Drawing.Point(19, 61);
+			createCueSheetCbox.Location = new System.Drawing.Point(19, 86);
 			createCueSheetCbox.Name = "createCueSheetCbox";
 			createCueSheetCbox.Size = new System.Drawing.Size(145, 19);
 			createCueSheetCbox.TabIndex = 3;
@@ -1531,5 +1561,7 @@
 		private System.Windows.Forms.Button applyDisplaySettingsBtn;
 		private System.Windows.Forms.ComboBox spatialAudioCodecCb;
 		private System.Windows.Forms.Label spatialCodecLbl;
+		private System.Windows.Forms.CheckBox useWidevineCbox;
+		private System.Windows.Forms.CheckBox requestSpatialCbox;
 	}
 }

Source/LibationWinForms/Form1.ProcessQueue.cs

@@ -30,6 +30,12 @@ namespace LibationWinForms
 				if (libraryBooks.Length == 1)
 				{
 					var item = libraryBooks[0];
+
+					//Remove this item from the queue if it's already present and completed.
+					//Only do this when adding a single book at a time to prevent accidental
+					//extra downloads when queueing in batches.
+					processBookQueue1.RemoveCompleted(item);
+
 					if (item.Book.UserDefinedItem.BookStatus is LiberatedStatus.NotLiberated or LiberatedStatus.PartialDownload)
 					{
 						Serilog.Log.Logger.Information("Begin single book backup of {libraryBook}", item);

Source/LibationWinForms/ProcessQueue/ProcessQueueControl.cs

@@ -92,6 +92,11 @@ namespace LibationWinForms.ProcessQueue
 				return true;
 		}
 
+		public bool RemoveCompleted(DataLayer.LibraryBook libraryBook)
+			=> Queue.FirstOrDefault(b => b?.LibraryBook?.Book?.AudibleProductId == libraryBook.Book.AudibleProductId) is ProcessBook entry
+			&& entry.Status is ProcessBookStatus.Completed
+			&& Queue.RemoveCompleted(entry);
+
 		public void AddDownloadPdf(DataLayer.LibraryBook libraryBook)
 			=> AddDownloadPdf(new List<DataLayer.LibraryBook>() { libraryBook });
 

Source/LoadByOS/WindowsConfigApp/WindowsConfigApp.csproj

@@ -26,7 +26,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3179.45" />
+    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3240.44" />
   </ItemGroup>
 
   <ItemGroup>

Source/_Tests/LibationFileManager.Tests/TemplatesTests.cs

@@ -284,7 +284,7 @@ namespace TemplatesTests
 		[DataRow("Carla Naumburg PhD", "Title=, First=Carla, Middle= Last=Naumburg, Suffix=PhD")]
 		[DataRow("Doug Stanhope and Friends", "Title=, First=Doug, Middle= Last=Stanhope and Friends, Suffix=")]
 		[DataRow("Tamara Lovatt-Smith", "Title=, First=Tamara, Middle= Last=Lovatt-Smith, Suffix=")]
-		[DataRow("Common", "Title=, First=Common, Middle= Last=Common, Suffix=")]
+		[DataRow("Common", "Title=, First=, Middle= Last=Common, Suffix=")]
 		[DataRow("Doug Tisdale Jr.", "Title=, First=Doug, Middle= Last=Tisdale, Suffix=Jr")]
 		[DataRow("Robert S. Mueller III", "Title=, First=Robert, Middle=S. Last=Mueller, Suffix=III")]
 		[DataRow("Frank T Vertosick Jr. MD", "Title=, First=Frank, Middle=T Last=Vertosick, Suffix=Jr. MD")]