So you've got a DVD stuck in the external USB SuperDrive that connects to the MacBook Air? And you've tried hitting the magic Eject button on the keyboard to no avail?
And you've tried drutil tray eject at the command-line? And you've tried booting with Option held down and clicking eject? And you've tried plugging the drive into other machines (Macs, Windows PCs, Linux machines) to no avail?
What do you do?
Clearly you hit the physical eject button, right? Every DVD drive has one of those. On the SuperDrive you first look for it on the front:
So, the easy procedure for removing the disk is as follows. First you pry open the case with some thin available tool:
And then you wonder to yourself. The drive inside the case is a Sony NEC Optiarc AD-5630A. And every other drive that Sony sells has a physical eject button, even the slot loading ones. Did Apple hide it? Did they ask Sony to not provide a button? I'm guessing that the Cypress Semiconductor microcontroller inside there knows all about doing an emergency eject.
Of course, you stop worrying about that and wonder how the cable has managed to fray on this barely used drive:
PS Some people have pointed out that there may be a secret lever inside the drive accessible from the front by sticking a thin screwdriver inside. I can't find any reliable mechanism (although jamming the DVD in place using a wad of paper and rebooting does work).