Setting the Default Slide Duration
The General pane in DVD Studio Pro Preferences contains a default duration setting that
determines each slide’s length when first imported. It’s a good idea to set the default
slide duration before adding slides to the slideshow. While this setting applies to all slides
when first imported, you can change the duration of individual slides later.
for more information on this setting.
You shouldn’t spend too much time fine-tuning each slide’s duration until you have
added and arranged all slides, and have added any audio.