Well, I used ImgBurn to create an ISO file and burned that to a disk. I can play that back on my PC without difficulty. Others have suggested I have a PAL vs NTSC issue ...
For those old enough to remember analog television, there used to be an adjustment (a knob!!) that could fix a picture that seemed to tumble on the horizontal axis. That tumbling is what I see on a freshly burned DVD disc, Is there an ImgBurn setting I should be adjusting before burning? thx