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Old September 22nd, 2007, 10:23 AM   #1
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rendering .WMV files

Two projects, same length, one .wmv file is 20MB, the other is 14MB...I'm using the same settings...anyone have a clue? Can content of a clip affect size?
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Old September 22nd, 2007, 10:39 AM   #2
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Quote:
Originally Posted by Jeff Harper View Post
Two projects, same length, one .wmv file is 20MB, the other is 14MB...I'm using the same settings...anyone have a clue? Can content of a clip affect size?
If you are using variable bit rate, the more motion you have, the higher the file size will be.............I think :)
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Old September 23rd, 2007, 09:55 PM   #3
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My understanding is that content can effect output size as the compression typically uses a form of delta'ing, comparing one frame with the next: the more that changes, the more that needs to be written out.

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Old September 23rd, 2007, 11:08 PM   #4
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Thanks guys, I have found amazingly little on this in a couple of quick attempts at googling for info.

I was rendering at quality VBR rate, then tried the others and found that Bit Rate VBR (peak) is comparable in quality, and a bit smaller in file size.

A 2min file I rendered today was 75% larger than another with the same settings though...amazing.
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