Is it possible that I can just rename the extension of a VOB file to MPG?

The reason I ask is that I'm having trouble capturing analogue video via my Videosafe device. It drops frames and so on and is generally crap.

What I want to do is run my analogue source into a DVD recorder and then drag the files off the DVD. I've tried this already and the recorder creates VOB files.

I don't want to edit the files I just want to arrange them in Encore so they can be played from my custom menu.

Trouble is Encore doesn't like VOB files.

Any thoughts?