I suggested using iMovie HD 6 to create DVD chapter markers to your movies, since that feature is now absent in the new iMovie ’08. It’s a hassle, because you have to export your video from iMovie ’08, import it into iMovie HD 6, and then export again after you’ve set up the markers.
Well, Aaron Miller points out a different method: do the dirty work in GarageBand ’08. If you’re already going to be mixing your audio there, it may end up being less hassle. Aaron details the steps on his new Unlocking iMovie ’08 blog.