How to mount/unmount a CD ROM?

[CrashedAgain]

My big problem with my cdrom is that all the sudden i can't eject the tray if its mounted. It never used to do this. (I'm positive of that fact because i was transfering files like a mutha the first couple days i had knoppix installed)

There something i screwed up to enforce this rule? :P

You are using the 'eject' command from console, not just trying to manually open the drive, right? The drive door is locked if the device is mounted...at least it is on my system.

[Shadda]

I used to just tap the button and it would work. And it's only been a day or two, so it's not like my memory is failing me

It's not that big of an inconvenience, just a minor annoyance.