found a patch at cyberlink that addressed "improved playback performance for Blu-ray movies with TrueTheater enhancement on AMD VGA platform."
and thought that might be a remedy. 17 minutes in and computer hard crashed during playback again. gonna see how 17.11.2 does
Have installed 17.11.2. started playing a dvd with patched and updated cyberlink powerdvd 15 and within 20 minutes comp crashed.
I don't know what could cause a crash playing back a 10 year old dvd but now I am aware that that is a thing.
I guess this is the bleeding edge.