Every CD-ROM device needs drivers. Who would advise that it doesn't and why would this case be an exception? Maybe I am out of the loop or maybe you were advised that there are already pre-installed drivers in Windows and most likely would not need to spend time installing them from a disk or downloading them. Anyways did the drive come with a drivers disk?
What the person probably meant was that Windows would have a driver for it, thus you wouldn't need a CD or disk with the drivers.
Anywho, make sure the drive is showing up, first off.
1. Go into the device manager and see if you see it listed.
2. Go into diskmgmt.msc and see if you see it listed.
3. If the drive is listed in both places, chances are it's just got its letter confused. Re-assign it a different letter in diskmgmt.msc and see what happens.
4. If that still doesn't work, remove the drive, remove it from the device manager, give it a stern lecture and stick it back in.