how do you burn a dvd from imovie thats compatible on a dvd player

See this post.

https://discussions.apple.com/docs/DOC-3711

how do you burn a dvd from imovie thats compatible on a dvd player?

Buy iDVD.

Purchase iLife 11 (includes iDVD) on disk.

IDVD is a wonderful piece of software and well worth the low cost of $40.

http://www.amazon.com/Apple-MC623Z-A-iLife-VERSION/dp/B003XKRZES/ref=sr_1_1?ie=U

http://dealmac.com/lw/artclick.html?1,527850,1872219

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.