First things first, please answer the following questions
1. What operating system and computer do you have?
2. When you open "My Computer", are your DVD/CD rom drives there?
If the answer is yes, disregard the following.
If the answer to #2 is NO, do the following.
Right click on "My Computer" or "Computer" ... however it is for you.
-goto Device Manager(top left of window for win 7, on the hardware tab for win XP)
-goto DVD/CD Rom Devices
-Right click on teh device/cd drive that you need to get working
-goto its properties
-goto the details tab
-click the drop down menu and get the "Device Class GUID"
-get familiar with that information that populates in the Value field, that is the Registry class information we need to find (you can right click on the value and hit copy, paste it to notepad or something similar)
***WARNING, THE FOLLOWING INVOLVES EDITING THE REGISTRY, THIS CAN CAUSE MAJOR SYSTEM FAILURE. PLEASE REVIEW HOW TO EXPORT A COPY OF YOUR REGISTRY SO THAT YOU MAY LOAD IT IF YOU MAKE A MISTAKE***
(to admin: I am sorry if it is against regulation, I am not sure on your ways of handling this, I have been away for a while.)
Do the Following:
1) Close all open programs
2) Click on Start, Run, and type REGEDIT and press Enter
--you can also open the RUN box by holding down the windows logo key + R
3) Click on the plus signs (+) next to the following folders
* HKEY_LOCAL_MACHINE ****make sure your under this one
4) This folder(class) is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.
DELETE THEM by right clicking on the values and choosing delete
5) Reboot your computer
Check your "My computer" to see if the drives are there and are working.