I seem to be having the same problem. However, it only messes up on certain ones. On all the songs I uploaded, I used MP3 Tag Studio 2.0. It seems that if the Track Number field is set to 0, it will mess up. If the track number is set to something besides 0, it seems to work fine. At least on the 2 albums that it did this to, the track number is set to 0. The others have their track numbers set to what they should be. I will redo the tags and try uploading again....Hmm, no it still does the same thing....Oh well...looks like i need to redo some tags...sigh...