Apple Final Cut Pro 6 - Manual (Page 1722)

Chapter 17 Exporting QuickTime Movies 239
III
Exporting a Self-Contained Movie Without Recompressing the Media
If you choose to export a self-contained movie, you have the option to not recompress
the media in your clip or sequence. If you deselect the Recompress All Frames option
and choose Current Settings from the Setting pop-up menu, Final Cut Pro simply
copies frames from existing media files into the new file with no recompression. This is
a convenient way to export your media without subjecting it to recompression
artifacts. However, any media that must be created from scratch, such as a transition
between two media files, must be recompressed.
Important: The option to turn off recompression is unique to the Export QuickTime
Movie command and the Batch Export command. If you choose the Export Using
QuickTime Conversion command, every frame is always recompressed.
Determining Processing Color Space During QuickTime Movie Export
The color space (RGB or Y´C
B
C
R
) used for processing during QuickTime movie export
depends on what you select before exporting:
 A sequence in the Browser, the current sequence in the Timeline, or a sequence clip: Color
space is determined by the settings in the Video Processing tab of the Sequence
Settings window.
 A clip in the Browser or Viewer: Clips in the Browser or Viewer do not have video
processing settings in the way that sequences do. When a clip’s media file and export
codec both support Y´C
B
C
R
color space, the clip is processed using Y´C
B
C
R
color space.
For example, if you export a DV clip in the Browser to a DVCPRO HD QuickTime movie,
Y´C
B
C
R
color space is used because both the original and exported formats support
this color space.
If any step of processing requires RGB processing (such as effects or the source or
destination codec), the export happens in RGB color space. This is true even if the
destination codec uses Y´C
B
C
R
color space.