diff -ur libtunepimp-0.5.3.orig/plugins/mp4/mp4.cpp libtunepimp-0.5.3/plugins/mp4/mp4.cpp
--- libtunepimp-0.5.3.orig/plugins/mp4/mp4.cpp	2006-11-18 11:51:08.000000000 +0100
+++ libtunepimp-0.5.3/plugins/mp4/mp4.cpp	2007-11-15 15:47:46.000000000 +0100
@@ -231,8 +231,7 @@
   
   strcpy(mdata->fileFormat, fileName + strlen(fileName) - 3); 
   
-  if (!MP4Close(mp4file))
-    return 0;
+  MP4Close(mp4file);
   
   return 1;
 }
@@ -315,8 +314,7 @@
   sprintf(temp, "%d", mdata->nonAlbum);  
   MP4SetMetadataFreeForm(mp4file, "MusicBrainz Non-Album", (u_int8_t *)temp, strlen(temp) + 1);
   
-  if (!MP4Close(mp4file))
-    return 0;
+  MP4Close(mp4file);
 
 #ifndef WIN32
   if (!MP4Optimize(utf8ToEncoding(fileName, encoding).c_str()))