Personally I think Gilles answer actually covers your whole question; it covers how there's no "Linux registry", and what you'll probably have to do to try and fix the problem on Linux. Adding the Windows registry instructions likely won't help, since (as Gilles says) they don't really translate to Linux at all.
If you do want to add them, you probably want them in a separate question. I would edit the old question to just ask about the registry (pull the DVD part out), and post a new question that asks about the DVD problem and doesn't mention a "Linux registry" at all. This will make the second part of Gilles' answer a bit inapplicable though, so you probably just want to leave it alone
Old question
What is the Linux equivalent of the Windows registry?
Many configuration settings on Windows are stored in a centralized location, the Windows registry. Is there an equivalent centralized store on Linux?
New question
What is the Linux equivalent of drive upper/lower filters in Windows?
I have a DVD+-RW drive that has quit working. Apparently many users of this laptop model experience the same problem under Windows and are required to edit the registry to correct the problem, like so:
- Expand HKEY_LOCAL_MACHINE
- Find SYSTEM
- Expand CurrentControlSet
- Expand Control
- Expand Class
- Find {4D36E965-E325-11CE-BFC1-08002BE10318}
- Delete UpperFilters & LowerFilters.
I'm hoping to adapt that fix to a Linux machine. Where should I look to make a similar edit?