MacBook 13″ / MacBook Pro /
iMac DVD drive (Superdrive) replacement

If the Superdrive is not responding (not ejecting the disc inside the unit) please try the following before considering replacing it: restart your Mac and when you hear the startup chime press and hold the mouse button or the touchpad button. After a few seconds, if it’s just a software problem, your drive will eject the disc and then proceed with the Mac OS startup.
Superdrive replacement is available for £100.