SOFTWARE related superdrive issues!!!

Question

The problems with the superdrive on my iMac G4 started with the upgrade to 10.4.9 an still persist with 10.4.10.
The problem is quite simple, the DVD drive does not recognize any previously burned DVD-R (1X or 2X) disks. It reads CDR's without problems, it even reads DVD+R.
The G4 takes some time to recognize a previously burned CDR at slower speed, but it works. It fails to write a CDR at slower speed but CAN write and later read a CD burned at fastest speed.
It simply cannot read any music CD's (it sits inside the drive and later spits it out).
It CAN read commercial DVD movies.
It CANNOT read DVD -RW previously recorded media.
The drive is a SONY DVD RW DW U10A revison A13b
The problem is not the media as I can easily read all the aforementioned disks in my Powerbook G4.
What is happening? help anybody?

Answer 1

Hi, some checks: 
note existing values.
run this command on your client machines to confirm their SUS config:
defaults read /Library/Preferences/com.apple.SoftwareUpdate CatalogURL
run one of these commands on say two  client machines to confirm the SUS config issue is DNS related:
defaults write /Library/Preferences/com.apple.SoftwareUpdate CatalogURL http://1.2.3.4:8088/index.sucatalog
defaults write /Library/Preferences/com.apple.SoftwareUpdate CatalogURL http://5.6.7.8:8088/index.sucatalog
server1 ip: 1.2.3.4   subt for configured server ip address
server2 ip: 5.6.7.8    subt for configured server ip address
do for server3 as well
See how you go