1. Restart the computer. If necessary, use the reset/interrupt button.
2. Immediately after the system startup tone, press and hold the Command-Option-O-F key combination. The computer starts up to a text-only screen, indicating that you are in Open Firmware.
3. At the prompt, type: eject cd
4. Press Return.
5. Type: mac-boot
6. Press Return

if that doesnt work, youre gonna need to go ghetto and pry it out with tweezers or something. Jut be careful not to damage any other components