The trial version lets you modify 3 tracks. It took 15 tries to find 3 tracks that it could modify. In only one case did it find album artwork (all tracks I tried lacked artwork, my primary interest). In another case it added lyrics (to Jingle Bells, no less!) and in another it found some incidental album info. But it couldn't find info on a bunch of commercial CDs, including issues by Diana Krall, Dave Brubeck or Alfred Brendel, all on major labels. So, for the moment, I'll keep my money.