I had a look on BenQ DW-1640, Plextor PX-760A and the drives really looks good. The Plextor’s PoweRec technology looks interesting at list on advert… I’s a pity their production was discontinued. I will suggest obtaining one of these drives if possible or look for successors of them. I will also post to the Lite-On forum as you said.
I will note that it would be good to do the quality tests on the three drives and compare them. I guess some drives can behave better with certain type and size of written data then others so it’s good to test using “production data” on each and compare the results.
Thanks for your invaluable help bjkg!
Lately we had HP drive (I don’t remember the exact version of firmware) pluggable via usb (Hm… could usb connection affect the disk quality??)… but we replaced it as the system stopped detecting it. We bought TSSTcorp SE-204N in hurry, but we would like to buy another one which has firmware aware of quality.
After buying it the firmware was updated. Here is a dump from Nero info tool.
Drive : TSSTcorp CDDVDW SE-S204N
Type : DVD-RAM Recorder
Firmware Version : TS00
Buffer Size : 2 MB
Date : ?
Serial Number : SE-S204NFirmware
Vendor Specific : 1001
Drive Letter : F:\
Location : 2:0
Mechanism : Tray
Read Speed : 16 , 8 X
Write Speed : 48 , 40 , 32 , 24 , 16 , 8 , 4 X
Thanks for the explanation why some tests are locked by Nero for certain vendors. We will have a new test relese of application in two weaks so I will unlock the tests and try to use the TSSTcorp drive we currently have. I will do the same after we bought new burner.