I'm not sure if this is a bug in the program, or just the MP3's themselves, but I can not write the ID3v2 on select MP3's. The ID3v1.1 will work fine, but since it is limited in character length, I use v2 more often. I have whole albums that don't accept v2 when i click write tags or anything. Even synchronizing the tags will not cause the tags to show up. I'm using build 007 on a Windows XP machine.