• Compression Techniques

  Compressor reporting estimated file sizes that are way off–why?

  Posted by Benjamin Reichman on August 24, 2011 at 3:07 pm

  I just compressed two XDCAM EX sequences (about 35-40 min each) into H.264, using the “Quicktime H.264” setting in Compressor. I set a specific bitrate (1500) and Compressor estimated the size of one video at 427.07MB. The finished file is actually 574.5MB. The other video had a similar discrepancy.

  Why would the Compressor estimated size be so different from the real size, when I chose a fixed bitrate?

  The reason this matters is that I’m uploading to a client’s own free Vimeo account, and I have to get the videos under 500MB to post. So I’ll have to recompress these with even lower settings–but I want to make sure I’m only compressing as much as I have to.

  I’m using FCP 7.0 and OS X 10.6.8.

  Benjamin Reichman replied 14 years, 8 months ago 1 Member · 0 Replies
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