The first thing that happens when you insert a DVD into a DVD player is called the startup action. For example, a video might play or a menu might appear. The startup action can be any item in your project (a track, marker, menu, script, or slideshow).
1. Select the disc by clicking an empty area of any of the DVD Studio Pro windows.
2. In the General area of the Property Inspector, choose an item from the Startup Action pop-up menu.
If you do not choose a startup action, nothing happens when the disc is inserted, and the Preview Mode of DVD Studio Pro does not work.
(This document contains information from Help Center, the help system included with your computer.)