In news:CC3DB89A-8E23-4C19-8BD2-A34542D0DA80@microsoft.com,
Alan <Alan@discussions.microsoft.com> had this to say:

My reply is at the bottom of your sent message:

> At both home (not the same PC as my other recent post) and work, I
> have CD-RW drives that originally worked properly. Now both of them
> work fine for reading CDs, but when I try to burn them I get an error
> message to the effect that the software can't find a CD writer (even
> though upon inserting blank media I get the popup acknowledging that
> and asking me what I want Windows to do).
>
> I've tried auto-updating the drivers via Control Panel-->Hardware,
> but it says I already have the most recent ones.
> I've tried different brands of media, and they all work on other PCs.
> I've also tried a few different software options (XP's Explorer,
> Real, WMP). XP Home at home, and Pro at work, if that matters.

Try removing the upperfilters and lowerfilters as explained on this page:

Missing CD/DVD Drives:
http://kgiii.info/windows/XP/general...VD_drives.html

--
Galen - MS MVP - Windows (Shell/User & IE)
http://dts-l.org/
http://kgiii.info/

"We approached the case, you remember, with an absolutely blank mind,
which is always an advantage. We had formed no theories. We were simply
there to observe and to draw inferences from our observations." -
Sherlock Holmes