I think Steve is onto something about the nature of the problem with the multi-channel audio suggestion.
However, rather than using QT Pro to mix down to stereo, you may need to preserve those additional channels for editorial. If this is the case, you can remove the video track from the original move in QT Pro and add your revised rendered video track back in, saving to a new file (so as not to overwrite the original).
Step by step:
- Open the original in QT Pro.
- Window > Show Movie Properties
- Select the video track and click the Delete button.
- Open the re-rendered clip in QT Pro.
- Select the video track and click the Extract button. This will create a new document with only a video track.
- Edit > Select all (in the new document)
- Edit > Copy (in the new document)
- Switch back to the original movie, making sure the playhead is on the first frame.
- Edit > Add to Movie
- File > Save As
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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