Don't bother trying to rig up any way to press the CD drive's eject button. It doesn't work even if you press it.

I have had a long standing problem on my Central where certain front-panel buttons don't work at all (and despite a lot of help from Hugo with the schematics, I still cannot find the fault, it's not in the ribbon cables connecting the display to the motherboard), so I am unable to eject the disc though normal means as well. Opening the case and pressing the drive's built-in eject button has no effect. Details in this thread.

(Side note: You may ask, how do I ever get the thing to eject the disc at all? I do it by going into the main menu and saying multiple CD mode.)