this comes up on the forum once or twice a month.

we can sit here and decrypt discs with anything from css to arccos to ripguard that the majot companies throw at us...what makes you think that any protection you can put on a disc is going to do anything?

that being said, the only foolproof way to protect a disc is to damage it just enough so it plays, but the data will not transfer in a copy. and good luck with figuring out where that line is when you take a set of keys to the underside of the disc!