Please post a screenshot of your Encore flowchart.
Does the DVD/BD player show an error, invalid disk, etc.
I don't see anything.
What do you see on the disk - Video_TS folder and one folder for DVD-ROM?
Otherwise, I'd wonder about disk/burn quality.
Does the disk autoplay and open a DVD software player on the PC, or how is it being played?
I think it should work. I would try it with no DVD-ROM, just as a test.
What model burner?
What kind and make of blank disk?
The DVD burner is the stock burner on the 2012 MacBook Pro 13inch (not retna display) I think it's a: Matshita DVD-R UJ-8A8(Firmware HB14)
The DVD was just a Maxwell DVD-R, 4.7GB, 16x.
I will try burning without the DVD-ROM contents and let you know.
Thanks again for helping me with this.
See if you can find one of these somewhere.
And only use these blanks.
Doing that, you're pretty much guaranteed the disk will work in any player capable of playing DVD-R disks. If you find one that doesn't, switch to DVD+R for that player.