I have an xbox. I also just bought the SegaGT/JSRF combo game. The game was new and sealed, I opened it, clicked on SegaGT and got the dirty disk error. This is with a new cd. Now, I can play JSRF all I want and it works perfect, but it refuses to load Sega GT. Is there any way to get this to load? The disk is totally clean. I understand a dirty disk error once in a while, but not to the point that it will never load a game. Is there anything I can do?