I have 2 drives: a CD-ROM; and a DVD-ROM / CD-R/W. (Both work. The CD came in the machine; I added the DVD.)
In the Registry there are many references to these; in some places the DVD is also classified as a CD-ROM.
I also have the IMAPI / Redbook annotations.
I am not familiar with devcon.
"Load an application that writes DVDs?"
Does either (or both) your drives have Write capability? I don't see that documented. In any case, if you can't even read a CD in either drive then I seriously doubt that a writing application is germane.
"Can I manually add them to some registry entry?"
- Theoretically, yes of course. But what would you put in? I have dozens of entries.
Were there other drive(s) previously in this machine? Were they cleanly removed before these drives were installed?
Are these new drives? If not, did they used to work?
Are there any BIOS parameters that apply?
Note that in the Details tab of the device Properties that you can scroll down (down arrow) through a lot of information. This is not all that is in the Registry, but an extract from it.
What I would do now (this is an outline, not a complete task check list):
- Double check that you have the latest drivers installed (from the drive vendors).
- Make a Restore point.
- In SAFE mode: disable the drives, uninstall the drivers.
- Physically disconnect them: power and/or signal.
- (If another computer is available and has a free bay, install a drive and test.)
- Boot (Safe, again). Make a Restore point. Check the Registry. Optionally: manually delete all the references you can find. (The great danger here is that you'll miss some, since there are CLASSes and other cross-references that are not easily identifiable.) Shut down.
- Reconnect a drive (or both).
- Boot and test.
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:22.214.171.124) Gecko/2008120122 Firefox/3.0.5