I recently purchased red dead redemption and for no apparent reason the game will stop in the middle of gameplay. The screen flickers as if the PS was just turned on, then reverts back to the XMB screen. It doesn't restart the system, only quits. Now I tried cleaning the disc, I used a (playstation approved) lens cleaner I have also checked to make sure that the system was not operating at temperatures too high. I can't think of any other ways of resolving this problem and I'm starting to think that it may just be a defective copy. I would like some answers or input on this subject. Anything is very appreciated