OK, let’s take “Live Music” as an example. To simplify the procedure, for each group (1-3 songs/chapters) I added the main video and set in/out points at the start and end of each group. I then added each group’s “movie” to a menu and set the end action for each group to the proceeding group. This accomplishes the goal of placing non-linear sections of the main video back-to-back, but according to Vegas Preview (I haven’t made a disc yet, it takes too long for DVD9) each group remains its own title. As such, it also won’t navigate backwards to previous titles. Playlists exhibit the exact same behavior. I can’t imagine doing this for each chapter will affect the outcome. I don’t know what else would be helpful to tell you.