Could you explain more detailled?
Well I'm no pro on the Nero, but it will not give me the start option to run a test, also when I pull down the menu for test it's all greyed out so I cannot choose any options, I can insert a blank dvd or a movie and it will give the info about the disk but still no start option to run a test. I ran a test with the sh-s203n when it was connected to the controller cardwith no problem.
I would btw at least have one of your two drives hooked to the SiI controller.
I will reconnect one of the drives to the card and see what happens.