If the cd does not work, some basic troubleshooting is suggested before you just change it out. Does the drive show up in "my computer" ? Does the drive show up in device manager (start, my computer, right click properties, hardware, device manager)? Is there a yellow ! next to it in device manager?
If the cd drive does not appear in "my computer", try the cd gone patch available at:http://www.geekstogo...pport-f113.html
If the drive does show up, back to my question above about the yellow! in device manager. Try updating the driver.
And finally, does the device have power? If you put a cd in it does the light flash? Have you tried cleaning the optical lens?
If you have done all of these and it has died, by all means replace it. Any EIDE cd/dvd of your choice will do.