Have you ever heard of bad copies of this game? My last copy of this game didn't freeze at all, but i had to get a used copy from gamestop because my original was messed up by an error with my ps3 when i wasn't home. This one i coulda swore worked for a bit and then it starts freezing randomly in games. Has anyone heard of something like this? I'd hate to buy another copy of this game just to see it's not the disc.