Ever since the latest map pack, it is virtually impossible to exit a game manually or wait till the game takes you back to the pregame lobby at the end, without the game freezing on either a black screen with the numbers on the top right hand corner (eg 20.199.1), or with the Call Of Duty logo and animated Treyarch logo in the bottom right hand corner.
This only happens on BO2. No other game freezes.
The disc is clean. The disc is not scratched.
The optical drive is clean.
The PS3 is in full working order as no other game has issues.
Get it together treyarch.