I have a Vaio pcg-k25f with a pioneer dvd burner (dvr-k12d)I can't see it in my pc. In the device manager it has an exclamation mark and it says : that the registry is incomplete or damaged. I tried unistalling an installing but it doesnt work. the weird thing is that if insert a start up cd, the computer starts using the cd. that means that it is working. i dont know what to do.

Support Information:
Device Type: CD / DVD
Manufacturer: Pioneer USA
Model: dvr-k12d
Interface: IDE
Operating System: Windows XP Professional
Age of Device: < 2 years old
FCCID:

Type of drive: dvd-r/cd-rw (dvd burner, dvd reader, &amp; cd burner combo)
Location: internal
What recording software are you using?: Easy Cd Creator/version

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=822&qa5=3&qa7=1500&dp=2&qm0=dvr-k12d&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=Pioneer+USA+CD+%2F+DVD++dvr-k12d+Windows+XP+Professional+) | Research manufacturer Pioneer USA (http://members.driverguide.com/index.php?action=getinfo&companyid=822)

This is a much discussed subject in this forum. There's multiple threads with the solution posted. It's called "delete the upper and lower filters fix".

1. File from Microsoft and instructions posted in the STICKY (at the top of this forum).

2. please read post #24 in this thread: http://forums.driverguide.com/showthread.php?t=21669&page=4

It contains instructions on the delete the upper and lower filters fix

3. Also, this thread has a file that will perform the registry fix:
http://forums.driverguide.com/showthread.php?t=22131
(automatic fix, post #7, download and run file: CdGone.zip)