Apple DVD Studio Pro 4 - Manual (Page 114)

Aspect Ratio and Resolution
You can create 4:3 and 16:9 slideshows. In HD projects, you can also choose a resolution
for the slideshow.
Note: In HD projects, the 720 x 480p, 720 x 576p, 1280 x 720p, and 1920 x 1080i resolutions
do not support the 4:3 aspect ratio.
When creating 16:9 slideshows, you are able to choose the display mode (pan and scan,
letterbox, or pan and scan and letterbox) used when viewed on a 4:3 monitor.
For the best results, you should make sure your slides match the resolution of your
slideshow. Slides that are smaller or larger than the slideshow’s resolution are automatically
scaled to fit it. Slides whose aspect ratio does not match the slideshow’s aspect ratio have
a background color added to fill in the gaps. The background color is part of
DVD Studio Pro Preferences. See
Setting DVD Studio Pro Preferences for more information.
Colors
The DVD specification requires all video, including stills and menu graphics, to conform
to the NTSC or PAL video broadcast standard for allowable colors. In order to support
broadcast bandwidths, NTSC and PAL video must use colors that are substantially restricted
compared to those your graphics program can create. It’s important to work within the
broadcast standard, because pictures and graphics that look fantastic when viewed in a
graphics application can look very different when viewed on a DVD. Highly saturated
colors create the biggest problems and produce the biggest disappointments when
viewed on a video monitor.
Before importing your pictures and graphics, be sure to open them in a graphics
application and use a filter to constrict the colors to NTSC or PAL color space.
Audio
Slideshows can have either an individual audio clip assigned to one or more of the stills
or one or more audio clips for the overall slideshow.
Important: If you assign an audio clip to the individual stills or use multiple audio clips
as the overall slideshow audio, all audio clips in the slideshow must be in the same format
(AC-3, AIFF, and so on), have the same bit rate, and have identical resolution.
114 Chapter 7 Preparing Slideshow Assets