Can't eject disc & it doesn't even show up on system!

Question

I installed Parallels 5.0 from the installation disc, which seems to be installed just fine, but now I can't eject the disc and it doesn't even show up under devices. I tried all these things below except the last one (because I couldnt get my mac to start like it describes). What now? I just bought this Macbook Pro new a week ago - soooo annoying!
Ejecting a CD or DVD when all else fails
If you've tried all the usual methods of ejecting a CD or DVD from your computer's optical drive, there are some other methods you can try.
First, quit all applications that are using files on the disc. Then try one of these alternate methods:
Open Disk Utility (in the Utilities folder of your Applications folder), select the disc, and choose File > Eject.
Choose Apple menu > Restart and hold down the mouse or trackpad button until the disc ejects.
If your drive has an emergency eject hole, put the computer to sleep and insert a large, straightened paper clip in the small emergency eject hole of the drive (the location varies, depending on the drive). Push firmly until the disc ejects.
If all other methods fail, you can try to eject the disk using the firmware. (This may not work on all computers. For example, it does not work on Intel-based computers.) The steps below describe how to start up and briefly use the computer with only the firmware loaded, not the standard Mac OS X interface.
To eject a disc using firmware:
Restart the computer.
When you hear the startup sound, press and hold the Command-Option-O-F keys. (The Command key has an Apple on it.)
Release the keys when you see a white welcome screen.
At the prompt, type:
eject cd
Press Return, then wait a few seconds. The disc drive should eject the disc, and "ok" appears on the screen when the action is complete.
Type:
mac-boot
Press Return.
Your computer starts up normally and you see the familiar Mac OS X desktop.

Answer 1

Open the Terminal application in your Utilities folder. At the prompt enter or paste the following:
/usr/bin/drutil eject.
If this fails then try this:
Boot the computer into single-user mode. At the prompt enter the same command as used above. To restart the computer enter "reboot" at the prompt without quotes.
I suggest that to start with you shutdown the computer. If you are unable to remove the DVD then it's possible there's a problem with your optical drive. Take the computer in for service.