Older Macs with built-in optical drives for reading and writing CDs or DVDs lack an external eject button and an emergency manual ejection system. The Apple USB SuperDrive also lacks mechanical ejection capabilities. If you own one of these devices, here are four ways to force your Mac to eject a stuck optical drive.
How to Force Eject a Disk from Your Mac
I put a cd in my Mac and now I don't know how to get it out. Where is the eject button?
Apple designers have removed the physical eject button and integrated the eject function into the Mac and the operating system itself. This allows you to eject an optical drive in a variety of ways without having to use buttons or, in the worst case, a paperclip to reach the emergency eject hole.
Most of the methods for ejecting a disk are software based. One of these methods may help you eject a stubborn optical disk.