I have been using the DVD Movie Factory2 software to author my MPG files to .ISO to burn to DVD-R. I had completed 6 images with 2 MPG files on each and then it started to generate the following error near the end of the image creation:

Failed to convert video file
Error: 80041c21
[17002:10:0]

I have encoded these using DVDx 2.1 at 23.97 fps NTSC, the original DVD was PAL, but all of the other files have worked correctly and if you just play the converted MPG files they look and work fine. Has anyone seen this problem before? I have already tried to reecode the files and have tried to encode them at 29 fps NTSC and still no luck.