Actually, I have done just that with these slide show files in the past but as a CD which works work fine. I went to update the files using Nero 9 and it seems to work out beautiful until I looked at my slides. Believe it ot not, the updated files when downloaded into Nero to make my DVD are now reversed in order of play yet the music plays normal. I then tried the obvious which was to download the reversed files to make my disk. it seemed to work OK but I found that my slides now have badly a degraded image quality. Grrrrr!
I Corresponded with Nero support for several weeks on this and all they want to do is sell me new software. I went to Best Buy's Geek Squad and they told me about your software and I made the DVD Disk which is missing the launch icon for the second file. If I go directly the VOB files with Windows Explorer I find that it will play just great if launched using that method so I now know that both files are actually on my disk.
Your suggestion to try another software download seems like a good one.
Thanks