What program did you use to convert the file from MPG to dvd ???
You could try one of these programs...
DVD SANTA walkthrough... http://www.gnutellaforums.com/252143-post6.html How do I run dvdSanta under Windows Vista?
dvdSanta 4.50 supports Windows Vista. However, you need to run dvdSanta as administrator in order to access your DVD burner. Just right click the dvdSanta icon on the desktop, select "Run as administrator" to launch dvdSanta.
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