Hello Thomas,
No firmware upgrade.
Actually you probably need a supported DVD drive.
HP-UX I think supports 1 or 2 models.
If you happen to have a supported model:
1) Make sure the cable and such is okay.
2) Make sure the scsi id does not conflict with the controller. Its common to set default to id zero which the controller wants.
ioscan -fnC disk
The universe of supported hardware for HP-UX is a tiny place compared to say windows.
Also the OS level might be a problem. You might need 11i to detect a DVD-R
SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
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Founder http://newdatacloud.com