another way, how to get the disk out is:
restart your computer, right before you hear chimes, hold down your mouse button. hold it, until it spits out the disk...
it works when you have unreadable disk in your drive and youre trying to boot up your computer. i have tried it myself, it works...
I actually had to go in and extract it manually. But the real problem was that the bezel, the thing that lets it slide in and out, it was bent so, if you can follow the steps to get that out in the guide section, and try to see if the thing is bent, if so, just be fragile, and bend it back into place.