IGX

Works better than any disc cleaner I have tried before. Buffs out minor scratches, eliminates skips. Don't know about blu-ray / Hi-def stuff for you crystal clear snobs, but works just fine on the Monsters Inc and Blues Clues discs that have been handled by my 2 year old. Yes, they are even more irritating when they skip around or stall.

I second this plug. CDs and DVDs come back from the dead.