Recently my copy of Guitar Hero 2 has decided to randomly freeze. The screen goes black and never changes, yet I can still hear the loading music in the backround. It does this on random songs at random times and sometimes even during a song it has already loaded. This problem used to be few and far between but now I can play a song maybe 1/10x. I have tried my copy on other playstations with the same results. The game has little to no scratches on the back and has been cleaned. I have only had it a couple of months and dont want to have a wasted game. Any help or tips would be greatly appreciated.

Kyle