Okay you need to do this:
Open regedit and go to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
Now delete the keys:
LowerFilters and UpperFilters in the right pane.
NB only one key may be present but still delete it.
Now reboot and your optical drives should function again.
NOTE: After you remove the Upperfilters value and the Lowerfilters value, if you notice lost functionality in a particular program, such as CD recording software, you may need to reinstall that software.