How do I make a DVD in iDVD automatically play ALL content and loop it WITHOUT going back to the menu in between each "movie" or at the end?

I want to make a DVD for a business that just loops over and over so no one has to keep hitting “play” everytime it finishes. It has multiple “movies” (movie files) on it so i see the option to loop, but it only puts it on each movie individually and not a “loop dvd” button or anything. is this something that would be done on the dvd player and not the dvd? or does iDVD support this feature? thanks!