When Do You Nest Sequences?
Nesting sequences is useful in various situations:
 You can edit a movie using multiple sequences; for example, you can create a
sequence for each scene. You can then place all of the sequences, in order, into a
master sequence and output to tape or export a QuickTime movie.
 You can also use nested sequences to reduce the amount of rendering when working
with effects. You can place all of the effects-intensive audio or video sections of your
program into separate sequences, and render them. When you then nest these
sequences into your main program sequence, you can change the In and Out points
of the nested sequences without having to rerender all of the clips inside of them.
 Another reason to nest sequences is to control the rendering order of effects used in
your project. This is useful for motion graphics work. You can apply filters to clips
inside a nested sequence, and then apply additional effects to the nested
sequence itself.
Chapter 23
Sequence-to-Sequence Editing
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