How to scratch an Xbox 360 disc

[A Black Falcon]

X360... it scratches discs if it moves while on (such as if it's vertical and gets knocked over...), it supposedly is a bit more likely to scratch discs (though not in that sudden, extreme way) if it's horizontal... or if it's vertical, depending on who you ask... but more seem to say horizontal. The direction where it's a lot less likely to tip over. Somewhat contradictory reports... but all agree, moving it while on is bad. :)

Some CD systems don't scratch discs when moved... one example I heard was a Discman... and I don't think Gamecube will, though I'm not sure if I've tried it.