Upstream bug 563283 by thansen from Freenode.

diff -NrU5 banshee-1-1.4.2.orig/src/Core/Banshee.Core/Banshee.Streaming/SaveTrackMetadataJob.cs banshee-1-1.4.2/src/Core/Banshee.Core/Banshee.Streaming/SaveTrackMetadataJob.cs
--- banshee-1-1.4.2.orig/src/Core/Banshee.Core/Banshee.Streaming/SaveTrackMetadataJob.cs	2008-10-06 18:27:31.000000000 +0200
+++ banshee-1-1.4.2/src/Core/Banshee.Core/Banshee.Streaming/SaveTrackMetadataJob.cs	2009-01-28 16:56:18.000000000 +0100
@@ -27,10 +27,11 @@
 //
 
 using System;
 using Mono.Unix;
 
+using Banshee.Base;
 using Banshee.Collection;
 using Banshee.Configuration.Schema;
 
 namespace Banshee.Streaming
 {
@@ -84,26 +85,28 @@
             file.Tag.Comment = track.Comment;
             file.Tag.Disc = (uint)track.DiscNumber;
             file.Tag.DiscCount = (uint)track.DiscCount;
             file.Tag.Year = (uint)track.Year;
             file.Tag.BeatsPerMinute = (uint)track.Bpm;
-            
-            SaveIsCompilation (file.Tag, track.IsCompilation);
+
+            SaveIsCompilation (file, track.IsCompilation);
             file.Save ();
         }
         
-        private static void SaveIsCompilation (TagLib.Tag tag, bool is_compilation)
+        private static void SaveIsCompilation (TagLib.File file, bool is_compilation)
         {
-            TagLib.Id3v2.Tag id3v2_tag = tag as TagLib.Id3v2.Tag;
-            if (id3v2_tag != null) {
-                id3v2_tag.IsCompilation = is_compilation;
-                return;
-            }
+            try {
+                 TagLib.Id3v2.Tag id3v2_tag = file.GetTag(TagLib.TagTypes.Id3v2, true) as TagLib.Id3v2.Tag;
+                 if (id3v2_tag != null) {
+                     id3v2_tag.IsCompilation = is_compilation;
+                 }
+            } catch {}
 
-            TagLib.Mpeg4.AppleTag apple_tag = tag as TagLib.Mpeg4.AppleTag;
-            if (apple_tag != null) {
-                apple_tag.IsCompilation = is_compilation;
-                return;
-            }
+            try {
+                 TagLib.Mpeg4.AppleTag apple_tag = file.GetTag(TagLib.TagTypes.Apple,true) as TagLib.Mpeg4.AppleTag;
+                 if (apple_tag != null) {
+                     apple_tag.IsCompilation = is_compilation;
+                 }
+            } catch {}
         }
     }
 }
diff -NrU5 banshee-1-1.4.2.orig/src/Core/Banshee.Core/Banshee.Streaming/StreamTagger.cs banshee-1-1.4.2/src/Core/Banshee.Core/Banshee.Streaming/StreamTagger.cs
--- banshee-1-1.4.2.orig/src/Core/Banshee.Core/Banshee.Streaming/StreamTagger.cs	2009-01-09 00:17:58.000000000 +0100
+++ banshee-1-1.4.2/src/Core/Banshee.Core/Banshee.Streaming/StreamTagger.cs	2009-01-28 16:57:49.000000000 +0100
@@ -139,11 +139,11 @@
                 FindTrackMediaAttributes (track, file);
     
                 track.ArtistName = Choose (file.Tag.JoinedPerformers, track.ArtistName, preferTrackInfo);
                 track.AlbumTitle = Choose (file.Tag.Album, track.AlbumTitle, preferTrackInfo);
                 track.AlbumArtist = Choose (file.Tag.FirstAlbumArtist, track.AlbumArtist, preferTrackInfo);
-                track.IsCompilation = IsCompilation (file.Tag);
+                track.IsCompilation = IsCompilation (file);
                 
                 track.TrackTitle = Choose (file.Tag.Title, track.TrackTitle, preferTrackInfo);
                 track.Genre = Choose (file.Tag.FirstGenre, track.Genre, preferTrackInfo);
                 track.Composer = Choose (file.Tag.FirstComposer, track.Composer, preferTrackInfo);
                 track.Conductor = Choose (file.Tag.Conductor, track.Conductor, preferTrackInfo);
@@ -180,25 +180,29 @@
             // TODO look for track number in the file name if not set?
             // TODO could also pull artist/album from folders _iff_ files two levels deep in the MusicLibrary folder
             // TODO these ideas could also be done in an extension that collects such hacks
         }
             
-        private static bool IsCompilation (TagLib.Tag tag)
+        private static bool IsCompilation (TagLib.File file)
         {
-            TagLib.Id3v2.Tag id3v2_tag = tag as TagLib.Id3v2.Tag;
-            if (id3v2_tag != null && id3v2_tag.IsCompilation)
-                return true;
-
-            TagLib.Mpeg4.AppleTag apple_tag = tag as TagLib.Mpeg4.AppleTag;
-            if (apple_tag != null && apple_tag.IsCompilation)
-                return true;
+            try {
+                 TagLib.Id3v2.Tag id3v2_tag = file.GetTag(TagLib.TagTypes.Id3v2, true) as TagLib.Id3v2.Tag;
+                 if (id3v2_tag != null && id3v2_tag.IsCompilation)
+                      return true;
+            } catch {}
             
+            try {
+                 TagLib.Mpeg4.AppleTag apple_tag = file.GetTag(TagLib.TagTypes.Apple,true) as TagLib.Mpeg4.AppleTag;
+                 if (apple_tag != null && apple_tag.IsCompilation)
+                     return true;
+            } catch {}
+
             // FIXME the FirstAlbumArtist != FirstPerformer check might return true for half the
             // tracks on a compilation album, but false for some
             // TODO checked for 'Soundtrack' (and translated) in the title?
-            if (tag.Performers.Length > 0 && tag.AlbumArtists.Length > 0 &&
-                (tag.Performers.Length != tag.AlbumArtists.Length || tag.FirstAlbumArtist != tag.FirstPerformer)) {
+            if (file.Tag.Performers.Length > 0 && file.Tag.AlbumArtists.Length > 0 &&
+                (file.Tag.Performers.Length != file.Tag.AlbumArtists.Length || file.Tag.FirstAlbumArtist != file.Tag.FirstPerformer)) {
                 return true;
             }
             return false;
         }