Index: src/Core/Banshee.Core/Banshee.Base/CoverArtSpec.cs
===================================================================
--- src/Core/Banshee.Core/Banshee.Base/CoverArtSpec.cs	(revision 4765)
+++ src/Core/Banshee.Core/Banshee.Base/CoverArtSpec.cs	(working copy)
@@ -99,7 +99,7 @@
             }
             
             // TODO compile regex
-            return Regex.Replace (part, @"[^A-Za-z0-9]*", "").ToLower ();
+            return Regex.Replace (part, @" *", "").ToLower ();
         }
         
         private static string root_path = Path.Combine (XdgBaseDirectorySpec.GetUserDirectory (
