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iDVD Specifications, Formats, and Limitations
Most of these items are mentioned in various other places in this chapter, but it may be helpful to summarize them here, in one place.
- iDVD can use any format that QuickTime recognizes, such as JPEG, PICT, PNG, TIFF, or Photoshop.
- Photo sizes of 640 x 480 pixels work well in iDVD. Larger sizes can be used but will be resized by iDVD to 640 x 480.
- A resolution of 72 ppi is ideal, although you can use higher-resolution images and iDVD will convert them to 72 ppi.
- Images smaller than 640 x 480 pixels will be enlarged by iDVD, usually adversely affecting the image quality. If you use a large quantity of high-resolution images in a slideshow, you may notice the iDVD application acts sluggish, but the final DVD will be okay.
- Each slideshow you create can have up to 99 photos.
- In the Slideshow editor, if you set the "Slide Duration" pop-up menu to "Manual," you cannot include music with the slideshow.
- MPEG-1 files, QuickTime VR movies, and movies with sprite or Flash tracks cannot be added to an iDVD project.
- iDVD accepts audio files that are supported by QuickTime, such as AAC, MP3, M4P, AIFF, and WAV.
- Each iDVD menu is allowed a maximum of twelve buttons.
- A slideshow in a drop zone can have a maximum of thirty photos.
- iDVD projects can have a combined total of 99 tracks (movies and slideshows). Of course, that depends on the duration of the content. You're still limited to 4.3 gigabytes of storage space.
- iDVD projects can contain up to 99 menus.
- iDVD will recognize up to 99 chapter markers in a movie.
- NTSC is the video standard for North America and Japan. PAL is the video standard for most of Europe and elsewhere.
