Since I've installed some programs I lost the driver path for the device (dvd room Panasonic Matshita UJ-850S.
I need your help, thanks a lot,
Alvadia ( Brazil )

Support Information:
Device Type: CD / DVD
Manufacturer: panasonic
Model: Matshita UJ-850S
Interface: IDE
Operating System: Windows Vista
Age of Device: < 1 year 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?: Nero/version

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=0&qa5=3&qa7=1801&dp=1&qm0=Matshita+UJ-850S&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=panasonic+CD+%2F+DVD+panasonic+Matshita+UJ-850S+Windows+Vista+)

Matshita UJ-850S optical drive never requires a driver other than the one(s) Microsoft includes with the system. Optical drives never require a driver when used in any Windows os from Win95 up. Windows XP provides native support that allows this drive to read a data or music disk and to burn a cd-r disk. No support for playing dvd disks or for burning dvd or cd-rw disks. For those tasks, compatible 3rd. party recording & dvd decoding software is required.

If your problem is non-detection, ie: drive is not listed in "My Computer", 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

Also, there is a STICKY posted in this forum that contains a file from Microsoft and instructions that will do this registry edit automatically instead of having to do it manually.


And here's another method that will do this automatically for you if you're afraid to edit the registry manually.

http://forums.driverguide.com/showthread.php?t=22131
(automatic fix, post #7, download file: CdGone.zip)


Alternately, download and install the DVD fix from the Web site below.

http://www.dougknox.com/xp/scripts/xp_cd_dvd_fix.vbs


After performing this registry fix, just reboot the pc. Now your drive should be visible in My Computer and work properly.

My regedit do not contain an upper or lowerfilter entry when i try to remove them, how can i fix my 850S?

i don't know until you tell me what the problem is. It sounds like your drive is not being detected by the os. Is it listed in My Computer? Used in laptop or desktop?