So a while ago I had the GOTY edition for the 360 and I downloaded the second disk's content onto my hard drive. A few months ago I sold the game. Since then I have wanted to play it again, so I went to the store and picked up a used copy of the non-GOTY disk. I still had Shivering Isles and KotN on my hard-drive, and when I put the disk in it says they are loaded, but none of the content is in the game. Why is this?