Well, I have a lot of punk compilations, and it seems as a lot of them are listed with either the record label or Various Artists as the artist, and in the song title field, it lists "Song - Artist". The extract feature gets rid of the "-" and slaps the artist name in the artist field. If they're backwards, you can just hit "swap". This is an incredible time saver. I just got through all of my single-artist CD's, now I'm going through the seemingly never-ending pile of compilations and sound tracks.