[banshee] [PlayerEngineService] Fix crash when trying to play from an audio CD

[Bertrand Lorentz <blorentz src gnome org>]

commit 95ae56a1008eb75a6461808a8f8d4fa224ba7e7d
Author: Bertrand Lorentz <bertrand lorentz gmail com>
Date:   Mon Jun 29 22:00:54 2009 +0200

    [PlayerEngineService] Fix crash when trying to play from an audio CD
    
    This problem was introduced by the previous commit.

 .../Banshee.MediaEngine/PlayerEngineService.cs     |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/Core/Banshee.Services/Banshee.MediaEngine/PlayerEngineService.cs b/src/Core/Banshee.Services/Banshee.MediaEngine/PlayerEngineService.cs
index 967c1a8..87af023 100644
--- a/src/Core/Banshee.Services/Banshee.MediaEngine/PlayerEngineService.cs
+++ b/src/Core/Banshee.Services/Banshee.MediaEngine/PlayerEngineService.cs
@@ -114,7 +114,7 @@ namespace Banshee.MediaEngine
             
             TrackInfo.IsPlayingMethod = track => IsPlaying (track) &&
                 track.CacheModelId == CurrentTrack.CacheModelId &&
-                track.CacheEntryId.Equals (CurrentTrack.CacheEntryId);
+                (track.CacheEntryId == null || track.CacheEntryId.Equals (CurrentTrack.CacheEntryId));
         }
 
         private void InitializeEngine (PlayerEngine engine)