I have been able to create and burn an SVCD, which plays, so I know my burner is working.
After discovering this forum, I tried creating a new project without any .mpg in the timeline until I got to the Share/Create Disc option. But even there I would get the "Failed to burn data onto the disc" message (error 534:214 721 691:0).
So, I then read about creating a video image file and then burning it to disc with the Ulead VCD/DVD Disc Image recorder.
Following are the settings I used for the project:

Following are the settings I used to burn the image:

I was successful in burning a disc with the following contents:


However, none of the contents is a playable file.
Thanks, I would be grateful for any help!
