Put the disc in the disc tray.
I will have to take my Battlefield 3 disc out of the tray first, though.
There are an amazing assortment of games coming out in 2011. I am purchasing four of them. But, urrrggghhh! Two are being released *one week apart* in May (Brink and Dirt3). Then two are being released *one week apart* in November (BF3 and Skyrim). I mean, really?!?!?!