Apple Final Cut Pro 7 - Manual (Page 1431)

Full Quality
When this option is selected, video is always output to tape at the highest quality. Areas
of your sequence that won’t play back at full resolution in real time must be rendered
prior to output.
Use Playback Settings
Final Cut Pro uses the selected real-time effects playback settings when outputting your
sequence to tape. If, as a result, your sequence will output at less than full quality, you
are warned of this prior to output. Outputting to tape at draft quality is useful for quickly
creating sample tapes of your program when you don’t have the time to render all
necessary effects first.
Video Scopes Playback
When the Video Scopes tab of the Tool Bench window is open, you can choose whether
the scopes update in real time or only when playback is stopped.
Still-Image Real-Time Playback
Still images and imported graphics can also play back in real time. The number of still
images that play back in real time depends on the size of the still cache set in the Memory
& Cache tab of the System Settings window.
You can adjust the
Still Cache slider or
enter a value to change
the number of still
images that play back
in real time.
The size of the still cache is limited by the total amount of unused physical RAM installed
in your computer. The larger the still cache, the more still images can be played back in
real time in the currently selected sequence. If another sequence is opened, the contents
of the still cache are automatically replaced with still images from the new sequence.
1431 Chapter 84 Using RT Extreme