cdogg, he said he recorded from a vhs, I would think with a combo vhs/dvd recorder. There is no indication of a computer used for the recording. That would mean there is no avi or mpeg files, as it is analog to digital internal conversion and the vob and associated files are created on the fly. Also many of the newer (last 3-4 years) dvd set top players will play native avi,mpeg,and even some dvix/xvid files with no conversion necessary. My Samsung will anyways. Also he is having problems playing it back on a desktop and a laptop, not a set top box.
I agree with Ben, if you are using windows media player, it will not play dvd's unless you have a pretty new version. Native player from xp will not play dvd's. VLC is okay, I also like MPCStar. Slick little player,and file conversion in a free download.