id3 mass tagger is a tool for listing and manipulating ID3 and Lyrics3 tags in multiple files. It can generate tag fields from the filename and other variables, and/or rename files, using an intuitive syntax. id3 currently supports the old-style ID3 format with track-number extension (ID3 v1.1), as well as the more complicated ID3v2 (ID3 v2.2.0, v2.3.0) format. This also means use is pretty much limited to audio files which use these formats, e.g, MPEG-1 Layer III.