Taking a new Xbox 360 and one that had been known to cause the circular disc scratch, BBC Watchdog placed each console on a level surface with a vase of water next to it to help monitor movement. Then, the tests began, starting with small vibrations to simulate walking around the house. Both consoles passed, but when the strength of the vibrations was increased to the level of a book dropping on a table, the older Xbox 360 put a big ring on the disc inside of it, whereas the new unit performed swimmingly.
As always, the emphasis is on keeping the Xbox 360 on a level, safe place when playing. We understand that hardware malfunctions can be a touchy subject, but throwing a tantrum with a disc in the tray might be a bad idea.