When you use the Send To SG command, Premiere renders a set of intermmediate, uncompressed DPX files first. The reason it does this is because both Premiere and SG accept various native codecs, but not the same ones. DPX mainatins the quality. That's a temporary solution as a result of the short turnaround time between the IRIDAS acquisition and the CS6 launch. For now, it will be faster to export an EDL and link to the files in SG.
Oliver
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