ID3v1/ID3v2 Tagging of MP3 fileshttp://search.cpan.org/dist/MP3-ID3Lib
This module allows you to edit and add ID3 tags in MP3 files.
ID3 tags are small pieces of information stored inside the MP3 file. They can
contain bits of metadata about the MP3, such as album name, song name, artist,
original artist, genre, composer, year of release, additional comment fields,
and many more.