I was playing forza 2 last night and after about 2 hours my console froze. I turned it off and on again but the game failed to load. When i took the disk out I noticed it had a crack either side of the centre hole, about an inch & half each side and I know it wasn't that way when I put it in the console!!! has anyone else ever encountered this? it was a back up on a Verbatim disk.