I already have those disabled. As I said all Alcohol and Daemon emulation options are disabled and not selected.
After many tray open/closes suddenly the media has been identified correctly (miracles do exist) and I decided to do some quality testing to it.
So, I have just run a Disc quality test using Nero’s DiscSpeed 4.11.4.0 against the Verbatim DVD-R Media.
The program gives me a quality score of 0. I don’t remember having this kind of result ever before. Even in the CDFreaks’ review Mitsubishi Chemicals Verbatim performed very well.
The DVD-R was burnt using Nero Express 8.3.6.0, and the writing took nearly 8 minutes, given that the media was 16x certified, I think that’s pretty slow.
These are the settings of the drive:
SmartBurn: enabled
Hypertuning: disabled
OverSpeed:disabled
Here the results of the KProbe and DiscSpeed tests:
DiscSpeed:
PI errors
Max: 401
avg: 11.95
Total: 199546
PI failures
Max: 37
avg: 0.50
Total: 66355
PO failures: n/a
Jitter
max: 12.1 %
avg: 9.44 %

Kprobe
Model : 0-0-1-0 D:LITE-ON DVDRW LH-20A1H LL0C
Disc : DVD-R , MCC03RG20 [Mitsubishi Chemical Corporation]
Speed : Max
ECC blocks sum (PI/PIF) : 8/1
Scanned range : 0 - 2137635
Sampling count : 98394
Errors : 0
PI Max : 223
PI Average : 2,40
PI Total : 38010
PIF Max : 169
PIF Average : 0,22
PIF Total : 3443

I’ll keep trying, but this is getting very surrealistic.
Thanks for your support and excuse my english.