TheRealMafoo on 11 August 2008
I would make sure your 360 is not on something that moves (like something that vibrates from a speaker, or a table that wobbles when a door is shut).
If the disk is spinning full speed, and the 360 moves slightly, it will scratch the disk in a fashion that you have described. I lose a Gears DVD that way (bumped the coffee table that the 360 was sitting on).
