I edit VOB files all the time. I just change the extension to MPG, and they edit and play fine with almost anything. VOB is just a container with mpeg 1 or 2 streams inside, along with an audio layer.

I used SmartRipper to rip a home video DVD to my hard drive, and renamed the resulting .vob files to .mpg. This appears to have worked. My Vegas 4.0 editing software wouldn't import vob, but it ...