DO NOT PICK UP/MOVE/WIGGLE/REPOSITION/VIBRATE/ROTATE/FLOAT/ANYTHING INVOLVING MOVEMENT TO THE 360 WHILE A DISC IS SPINNING.
When there is a game disc in the drive and the 360 is moved, the disc looses its nice lil rotation and slices a nasty gouge into the outer ring of any cd/dvd...We found this out the hard way at our gamecrazy when a customer asked to see it while playing PGR3, and it got fuxxd, luckily we had a ****load more copies. We tested it 10 more times with crappy CD-R's and moving it in almost any way shape or form while the 360 is spinning the disc at speed will **** the disc up throughly, and professional buffing will not fix it. (our store also has a buffer, 3 buffings and its still there)
Don't post saying this is untrue, you have tried it, etc, if you did and nothing happened, you got very lucky. I do not know if this effects all models but just a fair warning.
(No this is not sony propoganda, I work at gamecrazy and PGR3 Got fuxx'd up bad, i'll take a picture next time i'm up there if they didn't throw it away)