Ok so here is the story... The other day I rented Tony Hawk Project 8 for my PS3. Each time playing it about 5 minutes into the game the system would turn off. Sometimes it would go into standby mode, and sometimes it would turn all the way off and I would have to switch the back power switch off and back on to get it running again. Every other game I tried ran perfect for hours. Anyway, I took the game back and got a different copy of the same game. This time, it did it a couple times then permanently shut it down with no way to turn it back on. I called Sony and they are sending me a new one, but my question is, from a technical stand point, what could possibly cause two copies of the same game to do this damage?