Hope somebody can help me. I've had my PS3 since release. No problems. That is until last night. I was watching 'Letters from Iwo Jima' on Blu Ray disc and suddenly the screen went black and the error messaged 'invalid disc' appeared. I was about 1 hour 20 minutes into the film when this happened. i rebooted the system but the disc would not register. The little circle thing in the top right hand corner appeared, but nothing happened. I tried a normal DVD. same thing. game disc. same thing. CD. same thing. Whatever disc i put in my PS3 won't recognize the disc. What happened? I keep the PS3 clean, I have never dropped or knocked it. It is in a cool ventilated area. Anybody out there have the same problem? what was the solution? This problem only happened after i downloaded the 1.82 firmware earlier that night. thanks!