Uses MusicBrainz (musicbrainz.org) to fix your mp3 and aac tags in iTunes.
Handy utility to clean up the ID3 tags in your mp3 files.
TagEncoder is a audio tool application.
Use it to write the MP3 tags and rename the files according to a format string.
Free MP3 Joiner to combine multiple large or small audio files into one.
ID3 and Ogg tag reader and writer for Linux