By the way, i would recommend going out and buying a DVD Burner (if it is in the budget), they only cost 40 dollars or so at sites like newegg.com, and allow youto create DVDs that have higher compatibility to all DVD players, and are genuinely better quality.
you have to find out what kinds of formats does your dvd-player read. Most dvd players can play VCD, SVCD and DVD. So if you convert your file to any of those formats you'll be fine. As DVDBack23 said you can use Nero to do this. I think it's the easiest program to convert the file.