okay so i downloaded dragon age2 burned it but when i put it in. it asked me to update to play the game (the update was included in the game) my xbox has never been connected to xbl so i updated to play and the next day i put my black ops in and now it wont play but i can still play some other burned games
It's almost certainly going to be because Black Ops is protected by AP2.5. When you updated the dashboard, it'll have updated the AP2.5 data for the 6 games affected by it (Black Ops, Reach, NFS: Hot Pursuit, Modern Warfare 2, Assassin's Creed: Brotherhood, Fable 3). Run your copy of Black Ops through abgx360 and see if it says that the AP2.5 replay data is out of date, cos if it is, then that confirms it. If so, you'd need to rip any AP2.5 games you have where the data is out of date, patch them with abgx360, then re-burn them.
Depending on the firmware your 360 is flashed with, by trying to boot Black Ops without the correct AP2.5 data on the disc, you may also have flagged your Xbox 360 for a ban. You can check this by using XVal 2.0 (Google it).