Timeline display, render, and audio output options, Timeline options tab, Render control tab – Apple Final Cut Pro 6 User Manual
Page 1849: P. 366)

366
Part IV
Timeline Display, Render, and Audio Output Options
When you create a new sequence, the timeline display, render, and audio output
settings that are used come from the corresponding tabs in the User Preferences
window. Once a sequence is created, you can change its options by selecting the
sequence and choosing Sequence > Settings.
Timeline Options Tab
New sequences are created using the settings in the Timeline Options tab of the User
Preferences window. Once a sequence is created, you can change Timeline display
options in several places. For more information about Timeline display settings, see
Volume I, Chapter 9, “Timeline Basics.”
Render Control Tab
New sequences are created with the settings in the Render Control tab of the User
Preferences window. Once a sequence is created, you can change render control
options by selecting the sequence, and then choosing Sequence > Settings.
These settings allow you to enable and disable different processor-intensive effects in
Final Cut Pro, such as filters, motion blending, and motion blur. This is useful if you
want to speed up processing by not rendering all effects during playback, but you
don’t want to remove or individually disable these effects in the sequences of your
project. These settings affect real-time playback, rendering, video output, and
QuickTime output.
Render and playback
settings
Additional render
settings