Are there any Xbox emulators for Windows?

There are a few emulators out there. None of them are as far along as for example PCSX2 (the ps2 emulator.)

Your best bet is to try Cxbx: http://www.caustik.com/cxbx/
Make sure to check the compatibility list here: http://shogun3d-cxbx.blogspot.com/2009/11/cxbx-compatibility-list-updated.html
If the game is not listed, it doesn’t work.

What kind of discs does an Xbox use? Can a PC read them?
If not, you’ll need to download your games separately as roms.

Xbox (as well as the 360) uses DVDs.

fortunately, a lot of xbox games were already made into PC games, because Microsoft lisenced them.

But I don’t want to go out and buy PC versions of all my Xbox games.

hm, good point…