DVD pro failed again

I'm new to DVD Studio pro, have read manual and youtubes, etc but I just can't figure it out.

I finally got a dvd made BUT it is "Not Compatible". I followed printed instructions, everything, took out VIDEO_TS as it requested, and for the first time in 2 weeks, it actually began burning.

I try, I really do. I'm a not bad creative editor, but obviously a lousy tech. Usually end up getting someone to do that stage between finished FCP timeline to finished DVD.

Why would it encode, etc just to burn out an incompatible DVD, I've never had that on iDVD.