I actually read about this DV, that the older model Playstations are having problems with the game. I don't know if it can be fixed or not, I'll do a bit of research and try to find where I read about it. I've been having this problem every since I got my Playstaton back, but I just reset and reset for about 45 minutes (which is a pain in the behind) but here are some other people who have the same problem
PS2 Problems .