The same exact thing happened to me last year. My playstation works fine and then I buy Black Ops and it just won't play that game. It will play every other game I own so I bought I new ps3. And guess what not even two years later I had to buy a new playstation to be able to play this game. I love these games but I am so upset right now. I don't think I will buy another call of duty if I have to buy another playstation.
Started and froze after download
Restarted ps3 and it wouldn't even read disk
Tried blu ray movie and that worked
Tried modern warfare three and that worked
Tried a cd and that worked as well
Bought two games and had a friend come over
NEITHER of the three games worked! Got on a different psn account still nothing
So went to a friends house and tried both games on their ps3 and what do you know it freaking worked.
Bought a new ps3 and a third game (but fourth game I tried)
And it froze twice while in a party lobby
Restarted ps3 and went to public match by myself and is working fine.
I understand bugs but it pretty much crashed two of my playstations because now my old one won't work with anything and I have to send it in
constant freezing!!!! before the menu, after a game and zombie... this game gonna fucktop her ps3 man