Apple Final Cut Pro 6 - Manual (Page 1482)

Chapter 30 Working with Mixed-Format Sequences 697
IV
Rendering Mixed-Format Sequences
For the highest-quality output, you should always render any segments of a sequence
whose render status bars indicate that they need rendering. When you use the Edit to
Tape and Print to Video commands, Final Cut Pro automatically renders these segments
for you. For more information, see “
About Render Status Bars ” on page 620.
In some situations, you will need to render nonmatching clips to play back your
sequence. For example, if you add an uncompressed clip or HDV clip to a DV sequence,
you may need to render the clip in the Timeline if your computer cannot play back the
source media in real time.
External Monitoring and Output
To output a sequence to an external video device, the frame rate of both the sequence
and the video device must match. However, the image dimensions and codecs can be
different. Video is properly scaled and letterboxed or pillarboxed to fit within the
dimensions of your output device.
For example, if your computer has sufficient power, you can:
 Output an HD sequence via DV FireWire
 View a DV or OfflineRT sequence via an SDI video output on a third-party video interface
 Downconvert an HD sequence to an SD video output
Some specific examples of supported real-time video output configurations include:
 A DV NTSC sequence output to DV FireWire, where the sequence contains 1080i60
HDV and 720p30 DVCPRO HD clips
 A 1080i60 HDV sequence output to DV FireWire, where the sequence contains DV
NTSC and DVCPRO HD 720p30 clips