From the developer: ""File Sorting Utility is speciallized for renaming and sorting mp3 files. But it can actually sort any kind of files. FSU reads and writes ID3v1 and ID3v2 tags and can create filenames based on these and a userdefined pattern. FSU can add/remove/fix ID3 tags to perfection for you. By fixing means that FSU figures out the artist, title, track, album... and puts them in ID3 tags. Some features: mass-tagging, built-in player, rename files directly in windows explorer.""