Eject a stuck disk from your Mac DVD super drive: "More advanced Mac stuck disk eject methods
1) Launch Disk Utility and select the CD/DVD from the sidebar. Click the Eject icon at the top of the Disk Utility screen, it should pop right out.
2) Launch the Terminal and type following command:
drutil eject
3) If all else fails, try Restarting your Mac and hold down the mouse button (or trackpad button if you have a laptop) as the system boots. Hold it down until the system boots, again the disk should come out."
'via Blog this'
