Fortunately, I was able to solve this problem since my post. I finally thought of going to the Womble site for support and noticed they had a new "Womble Mpeg Video Wizard DVD" which authors the DVD for you. I downloaded the trial and though I didn't like the menu options, I gave it a try. The output files played in PowerDVD in sync. But since the disc was about 4.88GB, I wanted to run it through DVD shrink. Unfortunately, the output files from the "Womble Mpeg Video Wizard DVD" were not recognized by DVDshrink, TMPGENC DVD author, and a few other programs. Luckily though, I downloaded some program which simply processed the files and the resulting ones were finally readable by those aforementioned programs. So now at the very least I have one disc burned. I'll probably tweak some things and it's off to making more changes to the other five.
This editing hobby is much more time consuming than I had expected.