I have 3 DVD drives; LTD-167, BenQ 1620, and DVR-A09, but only the A09 read curves vary if I do something else with the computer while doing a CDspeed read / transfer rate test.
If I don’t touch the keyboard while ripping / reading, the curve is constant (and good) - but, if I browse the web, or do any other activity which I guess uses the IDE controller even a little bit, I get ups / downs in the curve. I didn’t have this problem with the A08, and don’t have it with the other drives currently installed, listed above.
The A09 is master on the Secondary IDE channel, the BenQ slave, my system HDD is on the Primary IDE channel, and the Liteon is in an ext. enclosure via 1394 / fw.
This has been in FW version 1.0, 1.05 and 1.09.
Any Ideas ??