How to eject DVD in single user mode

Hi All,
When starting my iMac, I get a white screen, the apple logo and the spinning wheel. After a while it goes away and I have just a white screen.
I've reset PRAM, to no avail (it did do something, the computer start up sound now occurs each restart).
I can't start-up on the Mac OS install DVD because I have a DVD in the computer already and I can't seem to eject it.
I can't get into Open Firmware mode to eject the disk there, I'm hoping someone can give me the command to eject the disc from Single-User mode.
Chris

Try the methods listed in this page:
http://reviews.cnet.com/8301-13727_7-10333570-263.html
The method for Terminal may also work in single-user mode.

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