DVD drive failed after upgrade to 10.4.9

After upgrading to OS X 10.4.9 I noticed that my internal DVD drive (SuperDrive Pioneer DVR-104) failed.
I did the delta upgrade and immediately checked the most common "error" of misbehaving eject key. The key did not function at all, even after pressing it for minutes.
Later I found out that the complete drive failed.
System Profiler tells me (sorry german output)
Modell: PIONEER DVD-RW DVR-104
Version: 0000
Seriennummer:
Absteckbares Laufwerk: Nein
Protokoll: ATAPI
Einheiten-Nummer: 0
Socket-Typ: Intern
Note: no version or serial number!
DVD player gives the message (translated):
"no valid DVD drive found [-70012]"
Toast does not find the drive.
I did:
- repair permissions
- repair drive/file system
- the combo upgrade
- reset parameter ram
- reset all from open firmware
- reset PMU
no change
Do you have any hints besides replacing the drive?
Maybe it's just a coincidence. I did not use the drive for 2 weeks before
the upgrade.
Stefan
PowerMac G4 Dual 1GHz MDD   Mac OS X (10.4.9)  

Hi, Welcome to Apple Discussions.
It sounds like LaunchServices.
Launch /Utilities/Terminal and copy & paste this at the command line:
Code:
<pre class="alt2" style="margin:0px; padding:3px; border:1px inset; width:640px; height:34px; overflow:auto">/System/Library/Frameworks/ApplicationServices.framework/\Frameworks/LaunchServi ces.framework/Support/lsregister \-kill -r -domain local -domain system -domain user</pre>
Then log out and back in or restart. Let us know.
-mj
[email protected]

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