After installing Vista RTM after about a day of running a reboot was required
after the reboot both my dvd writers disappeared and weren't recognized by My
computer They both showed in device manager but with a yellow ! when I
clicked on the writers I got this detail
I will show only one set of details for 1 of my writers although both are
basically same explanation but for different writer models
Description:
Windows was able to successfully install device driver software, but the
driver software encountered a problem when it tried to run. The problem code
is 39.

Problem signatu
Problem Event Name: PnPDeviceProblemCode
Architectu x86
Hardware Id: IDE\CdRomPIONEER_DVD-RW__DVR-106D________________1.08____
Setup class GUID: {4d36e965-e325-11ce-bfc1-08002be10318}
PnP problem code: 00000027
Driver name: cdrom.sys
Driver version: 6.0.6000.16386
Driver date: 11-02-2006
OS Version: 6.0.6000.2.0.0.256.1
Locale ID: 1033

As I have seen others with similar problems heres hoping someone can come up
with solution