QUOTE (Brendon @ Jan 30 2009, 07:30 PM)

Hi Marko,
This is very frustrating without the machine on the bench in front of me. If it was, then I could hit it when needed!!

If it
was in front of me, I'd be looking for drivers left behind by Nero. Everything you install seems to leave things behind in the \Windows\System 32\drivers folder. ECDC does, and that's why Patrick wrote Roxizap to clean out the odd bits left behind. I think Nero will have too.
Searching for them would probably involve ranking them in date order and looking for driver files on or after the day you installed Nero, combined with an internal file search looking for "ahead" or "nero" in either text or unicode. If you find a file you're suspicious of, just rename the file extension temporarily to stop it being loaded. You rename it back again afterwards.
I don't think a corrupt CDR4 is the issue. The source must be fine because nobody else has complained, and you yourself were running it nicely for years. Anyway, reinstallation solves file corruption. I would accept driver conflict, though it should have surfaced before now unless it's something that only arrived with Nero 9. [Who would install the latest Nero with a 6-year-old Roxio program ?]

Losing your drives in My Computer makes me think it's a filter issue, which should be a totally different thing but perhaps your filters were disturbed during installation or uninstallation. What shows in the lowerfilters key in
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318} ?? Regards,
Brendon
Thanks again Brendon. Accept that cdr4_xp is not the issue.
Have searched and found a number of erroneous Nero files which are now deleted.
Lower filters key: REG_MULTI_SZ CDR4_XP
Upper Filters key: REG_MULTI_SZ cdralw2k pwd_2kAm currently following this procedure:
Select 4D36E965-E325-11CE-BFC1-08002BE10318 .
Select UpperFilter in the right window and press the Delete key.
Confirm the deletion by clicking Yes .
Select LowerFilters in the right window and press the Delete key.
Confirm the deletion by clicking Yes .
Close the registry editor, restart the computer , and wait until Windows configures the necessary files.
After Windows is done configuring the new hardware, continue to the next Step; Uninstalling Disc Burning Software.
Step 4: Uninstalling disc burning software
Uninstall all disc burning software using Add/Remove Programs. It is important that your disc burning software is both uninstalled and reinstalled to properly reset the disc burning configuration with Windows.
Will let you know how it goes.
Many thanks again
Marko