I'm really disappointed that PP CS4 doesn't have an "Export to Encore" like CS3. It was a quick and easy way to get things onto a DVD. I figured out how to go through File>Adobe Dynamic Link>send to Encore and do it manually. One big feature that the "Export to Encore" had was a box to check if you wanted to "loop playback." Which basically forced the disc to keep repeating without having to mess with the actual DVD player settings. I cannot figure out how to do that manually within Encore CS4 itself. Does anybody know how. Does it exist in CS4?
In the End Action setting for your Encore timeline, set it to that timeline. This tells Encore to author the DVD so that when the end of that timeline is reached, go back and start over. This sets up an infinite playback loop. That's all the "loop playback" checkbox did--though perhaps a little bit more clearly and elegantly.