So there i was on live planting a few bombs etc (cod6) and suddenly a message comes up sayin 'disc unreadable'. WTF this was a new disc only a couple of months ago. Anyway open up the disc tray and there is a really deep scrath the whole way round the disc. its a new xbox sooo surely this shouldnt happen and plus my call of duty is now ruined! i want a new disc and i dont think that I should pay for it as i am not at fault but doubt i will get anything!!! any suggestions????