[David Garrett]

What to do is to create a 30 second audio clip (no video)in your video editor or audio editor and then ramp the volume for the audio clip all the way down to 0% and then export the audio file, and then import into Encore and then drag and drop this onto your menu… this is just a workaround for the Default 15 second duration that Adobe have for some reason built into Encore (perhaps to stop viewers getting bored to quickly..LOL)
But this does work…