Help! Guitar Hero III won't start...

[PS34EVER]

I was wondering if anyone could tell me the cause of the problem that I am having with Guitar Hero III. I start up the game and everything seems fine. Once it gets to the point where it says “reading HDD” or something like that (to load your save file to start the game) it completely freezes up and I can’t use the PS button or anything to attempt to restart the game. I always have to do a Hard Reset by flipping the switch in the back of my system.

This happens on no other game that I own, but I have been constantly trying to start up GHIII for the past couple of weeks and I am unable to play. I am going through serious Rock withdrawls…

Any help would be appreciated. I have tried everything to get this thing running, but to no avail. I have tried copying the save file to a Memory stick, deleting it then reinstalling it, amongst other things but nothing seems to work…