Apple Final Cut Pro 7 - Manual (Page 1539)

• For more information about sending to Compressor, see the Compressor User Manual,
available in Compressor Help.
Using the OfflineRT Format in Final Cut Pro
The OfflineRT format uses video settings optimized for offline-quality, low-resolution
editing and maximum real-time effects in Final Cut Pro. Final Cut Pro includes two basic
varieties of OfflineRT settings, one for standard definition and one for high definition
formats.
• If you’re capturing NTSC or PAL video: The frame size is 320 x 240 (4:3), the codec used
is Photo JPEG, and the compression quality is 35 percent.
• If you’re using one of the sequence presets to transcode high-definition video: The frame
size is 384 x 216 (16:9), the codec used is Photo JPEG, and the compression quality is
35 percent.
In both cases, the video frames are stored progressively. The frame rate of the OfflineRT
format should always match the frame rate of your original video, or it will be impossible
to accurately reingest your original footage for online editing.
These factors greatly reduce the data rate of the video, although they also lower the
quality. You should use this format only for offline editing, with the intention of reingesting
your video at full quality and full resolution for your online edit.
1539 Chapter 91 Offline and Online Editing