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In Reply to: Thanks, guess I'll just have to be more selective in editing... posted by Waldteufel on March 28, 2005 at 21:43:15:
It all depends on how much you compress the video. VHS is an analog format so there is also the question of how you want to sample it. The video bandwidth of a VHS recording usually limits the resolution to something less than D1 format (704x480). This, stored raw, would require a bit rate of around 240 Mb/sec, or over 100 GB per hour. The first thing compressors do is to convert to a luma/chroma color space and subsample the chroma 2:1 in both directions (humans are much less sensitive to loss in chroma resolution than luma). This cuts the bit rate in half. You might be able to get up to another 2:1 compression with a lossless entropy encoder. After this you will probably have to start throwing away information to get any more compression.
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Follow Ups
- Re: Thanks, guess I'll just have to be more selective in editing... - videophile 05:52:36 03/29/05 (1)
- Wow, the plot thickens... - Waldteufel 07:03:23 03/29/05 (0)
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