I need help. I have an old 20 Gb PS3. I was playing Battlefield 2 and it crashed. I restarted the system and the system no longer seems to detect game disks. I put in PS2 and PS3 game disks but nothing happened. When I put a disk in however, the blue disk light does come on. I don't know exactly what is going on nor how to fix it. Do any of you know? I haven't tried reformatting the system. I am not sure how that could help, but I haven't done it for fear of loosing downloaded files. Please help.