I turn on the xbox and it brings up that stupid dirty disc message and i know its not the disc cause its Halo 2, and its not dirty. I aslo tried putting in other games but they dont work ither, so I know its not the discs, but something inside the xbox.
I've heard that this is a laser problem inside the xbox that has a probelm with newer disks.....You have to go out a newer xbox....Go and ask someone that works at a gamestore on which one to buy.
Also, if it isn't the xbox.......You're really screwed.