If you have .wmv files on your computer and burn them to a DVD, will they play on any DVD player or only on computer DVD players?!?

only computers, most likely. sometimes you can find a player that will play .avi files or another file format, but to make it playable on most dvd players, you have to transcode it to dvd format using something like Nero Vision, which i highly recommend for this sort of thing.

really depends how lucky you are