hey guys, i searched the forums a little but i couldnt find an answer to this problem. i made a backup of a couple of games i just bought and they dont work. i backed them up the same as i always have with numerous games but my 360 says "unable to read disc... clean it" or what not. so i was wondering if anyone out there knows why that happens and if there is something i can do to fix the problem for the future. sorry if this has been addressed before in the forums and if it has please direct me to the answer. thanks.