Hi David. I reread the instructions Gaz posted and they do seem to work. The
error I encountered was my own fault (I misread the instructions). Follow the
instructions carefully, though, or you could seriously mess up your computer
(like I did). A big point to make sure of is that you should only have to
delete one registry key, not both!

Hope this helps!
-zimmi88 =)

"David" wrote:
[color=blue]
> Hi Gaz,
>
> Did you find a solution to this problem? I guess all the users of this
> Mat****a DVD-RAM drive running Vista have the same problem.
>
> Thanks,
> David
>
>
> "Gaz" wrote:
>[color=green]
> > Hi,
> > For some reason my dvd drive has stopped working.
> >
> > The error message I get is "Windows cannot load the device driver for this
> > hardware. The driver mat be corrupt or missing. (Code 39).
> >
> > I have checked for solutions - removed the device, all to no avail.
> >
> > Can anybody help?
> >
> > I found a possible solution but not being the most technically minded I am a
> > bit worried that if I do the below I might wreck the machine.
> >
> > Method 1: Remove the registry entry
> > Warning Serious problems might occur if you modify the registry incorrectly
> > by using Registry Editor or by using another method. These problems might
> > require that you reinstall your operating system. Microsoft cannot guarantee
> > that these problems can be solved. Modify the registry at your own risk.
> > Note If you had installed multiple CD-writing software products on your
> > computer, you need to uninstall the software products before you remove the
> > registry keys.1. Click Start, and then click Run.
> > 2. In the Open box, type regedit, and then click OK.
> > 3. Locate and then click the following registry subkey:
> > HKEY_LOCAL_MACHINE/System/CurrentControlSet/Control/Class/{4d36e965-e325-11ce-bfc1-08002be10318}
> > 4. On the File menu, click Export.
> > 5. In the File name box, type savedkey, and then click Save.
> > 6. Click the REG_MULTI_SZ data type UpperFilters, and then click Delete on
> > the Edit menu. When you are prompted to confirm the deletion, click Yes.
> >
> > Note If this data type is missing, go to Method 2.
> > 7. Click the REG_MULTI_SZ data type LowerFilters, and then click Delete on
> > the Edit menu. When you are prompted to confirm the deletion, click Yes.
> > 8. Quit Registry Editor, and then restart the computer.
> >
> > Thanks
> > Gaz[/color][/color]