Well, today I tried playing NBA 2K11. Keep in mind that this game is very lightly scratched. I tried playing a game in Association Mode. About 2 minutes into the first quarter, it said "This Disc Is Unreadable." So I went and cleaned the disc, but that didnt help. So then I tried playing GTA 4. Another message said "This Disc Is Unreadable." So then I tried Battlefield: Bad Company 2, which I just bought 3 days ago, and it couldn't even read it. It said "Play DVD" instead of "Play Game" on the dashboard. I tried talking to an Xpert, but he told me to install the game to my HDD and quickly left. When I tried that with NBA 2K11 it said that it couldnt do so because the game is "Scratched or Dirty." Is something wrong my the discs, or is it a problem with my Xbox?