One of the first thing I do when I get a new PC is delete all bloatware they put in there, then I do all the driver and software updates, followed by a defrag. So it is as up to date as I can get it to. I have one of those blu-ra drives on my VIAO, so I do not know if that is the issue. It is a “MATSHITA BD-MLT UJ-220S”.
Like I said I can burn DL-DVD and Blu-ray DVD’s with no problem using other programs, but the so called VSO engine in DVDFab chokes everytime on a DVD9. Have not triend a direct imgburn of the video file yet, I hope that will work when I try it, but even better would be a compatibility fix for the Drive or driver.