Just letting you know that for those PC users who have converted to Mac or Mac users in general looking for a decent mp3tag editor you can run MP3TAG natively under Mac OSX using crossover !! No need to dual boot using Parallels, VM Ware or Boot Camp.
Note you need to install crossover first, then install mp3tag as you would on windows.
Mac OSX really sucks when it comes to choices for mp3 players and editors. I am glad i was able to remain using mp3tag on my switch to Mac.