How to fix: Code 39 cdrom error

If you get an error code 39 from your cdrom drive and uninstallling the driver dos not help to fix it do the following.

1. open regedit
2. search the key [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}]
3. remove all items called:
   UpperFilters
   LowerFilters
   UpperFilters.bak
   LowerFilters.bak
4. Reboot your PC or
   1. Open the device Manager
   2. Uninstall the cdrom (context menu)
   3. scan for new devices . It will show up correct in Windows 7

Info from http://www.pchell.com/hardware/cd_drive_error_code_39.shtml"