Actually I updated to 12625 Dash. I never used to check stuffs before updating. Now one day I got AC2, and Black ops. Now, AC2 wasn't working at all, I was getting "Unreadable disk" error. But black ops did. Then I thought updating the dash might work. Updated to 12625. Then I got black ops screwed too. Now, what I'm asking is, what should I do now to play blacks ops and AC2? My system runs the rest of my back up disks. But I wanna play those 2 games. SO, what should I do? I'm a newbie, a little informative answer will be more helpful. Thanks in advance.