It's an absolute clusterfuck to get half of them working in the first place. Main reason I went to the 360.
Seriously, installation time, entering key time, finding out the DRM doesn't like your setup and trying to fix it time, giving up on that and downloading the pirate copy time, installing the pirate copy time, entering the legit key in the pirate copy time, starting the game and fiddling with the settings to get the thing to run properly time...
Vs
Pop the disc in, wait for updates to install, play the game.