Fewer Buttons Can Be Used
When you set a menu’s display mode to 16:9 Pan-Scan or 16:9 Letterbox, you reduce the
total number of buttons you can have on the menu. For SD projects, the total number
of buttons drops from 36 to 18; for HD projects, the total drops from 48 to 24. This is
because DVD Studio Pro must create two menu overlays, one for each aspect ratio, and
automatically select the one to use based on the DVD player’s aspect ratio setting. When
you set a menu’s display mode to 16:9 Pan-Scan & Letterbox, the total number of buttons
you can have on a menu drops to 12 for SD projects, and 16 for HD projects, because
three menu overlays must be created.