> All I know is don't use QT Pro to do compression. The image will fall apart.
Not necessarily. Remember, Vic, you were trying to make a file under 1MB out of a trailer over 60 seconds long. Anything would fall apart at those data rates.
And John Foley brought up that Compressor is really just a GUI for QuickTime, which would lead me to think that both applications use the exact same tools for compression, just different interfaces and presets.