Currently Being ModeratedMay 1, 2012 6:19 PM (in response to futureperfect)
If you want to make a DVD, then iDVD is what you need.
iMovie iOS will allow you to edit the videos together (if they are in the correct format and imported into the camera roll / camera app).
There is no way to make a chaptered video in iMovie iOS.
I suggest you get iMovie Mac or create seperate videos and one whole combined video.