Apple Final Cut Pro 5 - Manual (Page 426)

Chapter 5 Working With Projects, Clips, and Sequences 91
II
Note: The one setting that may not be changed is the sequence frame rate (referred to
as the editing timebase). You can change a sequence’s frame rate (editing timebase)
only if the sequence is empty. Once a sequence contains one or more clips, you can’t
change its editing timebase. Removing all the clips from the sequence allows you to
change the sequence’s editing timebase.
Changing sequence settings is discussed in Volume IV, Chapter 26, “Sequence Settings
and Presets.”
Viewing an Existing Sequence’s Settings
All sequences have settings as soon as they are created. When you first create a
sequence, its settings are determined by the currently selected sequence preset in the
Audio/Video Settings window, which is specified by your current Easy Setup.
To view sequence settings:
1 Do one of the following:
 Select a sequence in the Browser.
 Open a sequence into the Timeline.
2 Choose Sequence > Settings.
For information about changing sequence settings, see Volume IV, Chapter 26,
“Sequence Settings and Presets.”