DOes your computer still recognize the CDROM drive?
Try clicking, My computer--do you see your CD Drive listed?
If not, then run Hardware manager and reinstall it.
If you see your CD listed, then right click on My computer and select PROPERTIES, HARDWARE, Device Manager and scroll down to your drive, right click on it and check on the tabs, maybe you just need to reinstall the driver.
It doesn't recognize it in My Computer; I'm running Windows XP; do I go to the Device Manager now?