Does anybody know why I'm unable to run Nero disk quality test on my NEC/Optiarc AD-7173A or my NEC ND-3500AG ? DVDInfoPro PIPO test doesn't work either. NERO: ND-7173A - After clicking start the drive begins to spin up for a few seconds then gives the error "Error initializing test". AD-3500A - The Start box is just greyed out. DVDInfoPro ND-7173A - After opening the PIPO test window the "Start" button is greyed out as if the test is already running but pressing the stop button works. Then clicking start it tells you "please wait..." and "Starting PIPO test..." but it stays at 0% and does nothing. AD-3500A - Gives the error "Check your firmware. Revision 2R8 at least is required." when trying to start. Any help would be appreciated. I know for a fact that the NERO test can work on the 3500AG as I've seen results of such on these forums when searching Google for answers.. not so sure about the 7173A though but seeing as it's such a newer drive I'd be surprised if it didn't work. Thanks!