Some photos jiggle when DVD played on TV

My 13:30 project is composed of jgp and png images, along with strips of m4v files exported from iPhoto. There are also two titles made with Live Type.

My problem is that when playing the burned DVD on TV, some photos jiggle. I've tried two different types (quality levels?) of media.

There's no jiggle when playing the DVD on computer, nor is there in the mov file.

What do you suspect?

Suggestions welcome.

(I may next try making a dmg file in iDVD and burn with iDisk or Roxio).

Thanks,

Terry D