Why can I export MPEG to SheerVideo?
There were two problems here, one with captured video, and one with the dual G5. Both problems were fixed in QuickTime 6.5. Make sure you have the latest release of QuickTime and the latest release of SheerVideo. During video capture, QuickTime groups frames into chunks in a way that is optimal when all frames are encoded to the same size, such as for uncompressed video or for DV, or, apparently, when the codec is slow enough. In earlier versions of QuickTime, QuickTime’s chunking method worked poorly when the encoded frames have a variable data rate, and, apparently, when the codec is too fast, as for SheerVideo. To play back captured video smoothly with earlier versions of QuickTime, re-export the SheerVideo movie to the same SheerVideo format, and QuickTime will rechunk the video data optimally for smooth playback. QuickTime 6.5 can play back such mischunked data smoothly. In a separate problem, earlier versions of QuickTime did not play back any SheerVideo smoothly on the dual G5.
