Get a paperclip or something like it. Remove the face plate. Directly under the middle of the disc tray are two little holes. Stick the paperclip into that hole to press the release button.
Now, I mentioned that there were two holes. One of them will release the disc tray. The other will kill a puppy. I can't remember which does which. Oh well, good luck!!
*edit* this will work, even if your 360 is turned off and unplugged. It's an actual failsafe built into the 360's design. I'm almost postive it's the first hole that you stick the paperclip in, btw. Wouldn't want any puppies to die because of me.








