I have to wonder if there was actually a problem with your disc or drive. Everyone assumes an eject button is the magic elixir, but in 5-10 years of supporting Macs I've yet to have a working drive not spit out a disc using one of the regular methods like holding down the mouse button while booting.
I believe they replaced the drive. My problem is that I wouldn't need the drive if I didn't have one by the time but with the CD inside it would make a lot of noise trying to do something to it...
