The Problem is well known in the DVD forums.
The Drive Slimtype DS8AZH ATA Device has poorly updated firmware,
and has compatibility problems with many DVD+/- Brands.
If you attempt to Burn for example 8x on a Riton or Taeyo Yudin DVD-r
if will burn very slow, of fail burning.
If using Nero, it may sometimes come up with Power Calibration Failure.
A temp working around is just to Burn at 1x.
I have tried many Media Types, some with success, and some varied,
and forced to Burn at 1x, with occasional power calibration failure.
I've contacted HP support a few times, and they ignore the Problem and tell me to use HP media. A poor reponse to where a Quality Product should be able to support a wide variety of media, and have firmware updates available. Does not seem to be supported by the Vendor who supplies this Drive to HP. When you Call HP support they do not even know who the Drive Manufacturer actually is.
I have patiently waited for 10 Months and no updates and support so far.
Poor Hardware Support from what I precieved as a Quality company in the past
That are ignoring the problem so many HP Pavillion DV6000 users are having.
The DV8000 series of Notebooks use another Brand of DVD Drive, and do not suffer from this problem.
I use an External USB DVD drive with the exact same Software..and burn successfully any media. Nero 7
HP Pavillion DV6000 series..
Windows Vista Home Prem.
Slimtype DS8AZH ATA Drive