how do you burn a dvd from imovie thats compatible on a dvd player?
Purchase iLife 11 (includes iDVD) on disk.
IDVD is a wonderful piece of software and well worth the low cost of $40.
Yes, there are programs that will put a movie on a DVD. I have tried most of the other substitutes including Toast, Burn, Wondershare, and others. None of them come anywhere near the ease-of-use and power of iDVD. IDVD is specifically designed to work with iMovie.