Itunes still does not recognize my cd/dvd writer drive Apple Support Forum

Question

After following the instruction in the Apple Support Forum, by reinstalling iTunes, accessing REGEDIT and removing the lower filter key (the upper filter key was never there to begin with) and rebooting, iTunes will still not recognize either of my cd/dvd rom/writer drives. The drives work perfectly fine for importing and burning to using Real Player and Windows Media Player. I tried the repair function in the control panel for iTunes and also updated the firmware and driver of the cd/dvd roms and still nothing.
Does anyone else have any other ideas? I ran the diagnostic and here is what turned up:
Microsoft Windows XP Professional Service Pack 3 (Build 2600)
HP Pavilion 061 ED842AA-ABA M7250N
iTunes 9.0.2.25
QuickTime 7.6.5
FairPlay 1.5.23
Apple Application Support 1.1.0
iPod Updater Library 9.0d11
CD Driver 2.0.7.5
CD Driver DLL 2.1.1.1
Apple Mobile Device 2.6.0.32
Apple Mobile Device Driver 1.45.0.0
Bonjour 1.0.6.2 (118.5)
Current user is an administrator.
The current local date and time is 2010-01-24 13:28:22.
iTunes is not running in safe mode.
Video Display Information
RADEON X300 Series
RADEON X300 Series Secondary
** External Plug-ins Information **
No external plug-ins installed.
iPodService 9.0.2.25 is currently running.
iTunesHelper 9.0.2.25 is currently running.
Apple Mobile Device service 2.50.39.0 is currently running.
** CD/DVD Drive Tests **
No drivers in LowerFilters.
No drivers in UpperFilters.
Failed loading CD / DVD drives, error -43. Try doing a repair install on iTunes from the “Add or Remove Programs” control panel.

Answer 1

(the upper filter key was never there to begin with)
There's some advanced advice in the following post on creating the UpperFilters entry:
http://discussions.apple.com/message.jspa?messageID=8081513#8081513
With an UpperFilter enty in place, do you get recognition again?