Do you need to clean up your music library? Picard is an open-source cross-platform music tagger by MusicBrainz. It has the ability to identify audio files even without any existing metadata.
Picard helps you organize your music collection by renaming your music files and sorting them into a folder structure exactly the way you want it. A variety of plugins are available and you can even write your own. Picard supports a wide range of audio formats and can also lookup an entire CD for you.
Tagging audio files has never been easier.