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video length


etsted

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There are so many different factors involved in file size and the length of the video is just one of them. The compression method, the quality of the video, the resolution of the video and the distribution of bits before compression all are involved. You can't really know for sure how big a file will be until you create it, statistical averages can be made.

 

In any case, the file size would be too large to measure in kilobytes, megabytes would be the order of magnitude the file would be measured with.

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back in my editing days using Xvid compression with 640x480 resolution, I would average about 20 mb a minute, more if I really worried about visual quality. nowadays video compression has improved a step or two, yet the average resolution has increased as well, I would probably guess 30-40 mb a minute at current standards, yet I wouldn't know for sure since I haven't produced a video in a long while.

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