Try this:
Remove each and every chapter marker end action. Set the end action of the main timeline to whatever you need (like the main menu). This will give you seamless playback for “Play All”. Set the Play All button to link to the main timeline.
If you don’t want the program navigation to take the audience back to a menu after each chapter, then just link each menu button to its respective chapter. You’re done.
If you want the audience taken back to a menu after each chapter, then create 18 individual chapter playlists. Set the end action of each *Chapter Playlist* to go back to the menu.
Make sure to remove *all* overrides from anywhere in your project.
-Jeff
The Focal Easy Guide to Adobe Encore DVD 2.0