I have stumbled upon MusicBrainz lately. The site turned out to be worth spreading the word about. It seems that guys are creating the largest music metadatabase, created and maintained by users.
Every song has music metadata that includes artist name, release title and the list of tracks. And most people like to have this info to create music collections or just to see what is being played.
When you convert audio files with Total Audio Converter it searches Free DB database to get metadata for your songs. MusicBrainz tries to create an even larger database using free users’ hands. This means that any person can add some info or edit the existing one. All the info collected by users is given to public via free tools (though they urge you to donate them at least $10:). So if you failed to find metadata of some song there is a chance that you will find it in Music Brainz.