Sorry, I'm unaware of any difference in the mp4 encodes, but could be, just don't know.
I presumed you were using FCP 7.. That's what I'm unclear about. Sending from 7 to Compressor 4 (it might not work, I just don't know)...
I'm not hearing anything about 4 being faster than earlier versions. I don't think it is.
If you're making h.264 streams, Matrox has an accelerator board for this...
Jerry
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