Brian: Sorry, I didn't read the thread closely enough - I see you supplied all of the requested information. Sorry for being an idiot!

You should have slapped me for that!
I took a look and I can't see anything obvious in your hardware reported by the dxdiag that would cause your problem. Your computer looks very capable of handling PD9.
The one thing I did note was a lot of Roxio files and drivers in your dxdiag report and, as Dafydd has suggested, that
might be causing some kind of a software conflict with PD9. I have some simple OEM Roxio burning software on my computer that came with my Dell, but I never use it because I don't find it to be very good. That said, it has not caused me any problems either.
I am not sure that there is a simple software fix for your problem. Lots of us are burning DVDs successfully of much longer duration, in my case one-hour and two-hour video DVDs in DVD-HQ and DVD-SP, respectively. I have personally burned well over a hundred DVDs in .mpeg2 format in the short time I have been using PD9 and I have only had the error twice, and it was resolved by reducing burn speed and ensuring the DVDs were virgin.
What format are you trying to burn?
From the look of your screenshots, PD9 is dying just as it tries to actually burn the disc - at 99% authoring, you will hear it fire up the DVD burner. Something, either the DVD burner, the driver, conflicting software, contaminated DVD, or something else is causing an abort of the burn process before it ever really gets going.
If you do want to experiment, get some DVD-RWs (to avoid making coasters), and try burning a simple project with just the sample clips that come with PD9 at 4x in .mpeg2 format at DVD-HQ and see how that goes. That would at least rule out a bad media file.
There has to be a simple answer to this issue. Most of the other users have either found a solution, or gave up and burn to folder, then to DVD using alternate burning software.
I can understand your desire to have it all done by PD9. That's the way it should work. In any event, I am fresh out of ideas, but I wish we could find a solution. Perhaps some of the more erudite forum members will be able to figure out the problem. I confess that I am not the most technically literate person haunting these forums, far from it!
Have a great day, and good luck with PD9 or whatever package you select.
Regards,
-Phil
Windows 10 Pro x64
Dell XPS 8930
Intel CoreT i7 (4.6 GHz)
32 GB DDR4-2666 RAM
1 TB PCIe -x4 SSD
NVIDIA GeForce RTX 2060
PD14 Ultimate x64, 4207
CD4 Ultra and AD6 Ultra
Bleeping Computer Malware Response Instructor