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Sony XDCAM EX Pro Handhelds
Sony PMW-300, PXW-X200, PXW-X180 (back to EX3 & EX1) recording to SxS flash memory.


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Old November 4th, 2009, 06:21 AM   #16
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Open a S&Q clip in your edit application and look at the data rate. It will be 35Mb/s give or take a little, whatever the frame rate you shot at. So for a shot that plays back 30fps with a bit rate of 35Mb/s if it was shoot at 60fps then as it as it was recorded at double the playback frame rate then the record bit rate must also be doubled.
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Old November 4th, 2009, 08:39 AM   #17
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Better yet, take the size of the file in megabytes, multiply by 8 (the number of bits in a byte) and divide by the number of seconds it plays back and see if the result is around 35, 70, or perhaps 14 (i.e., 35/2.5).

There is some overhead (the MPEG headers), so the result may be slightly less than the theoretical numbers. Nevertheless, it should be close to one of those values.
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