Well, i got Halo 3 on release day, and when i popped it in my xbox 360, i got an error msg saying to put it in an xbox 360 console. Id just start the xbox over a few times and it would work, sometimes getting Disk read error. So after a while i got gears of war, it worked awesome until 3 days later where it always got the disk read error. My xbox 360 is on its way back from repairs and i am scared to pop halo 3 back into it because i think it will mess it up again. Is this possible. what should i do?