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Old March 31st, 2008, 11:23 AM   #1
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HDV hours/gig's

This may be a dumb question, if so I apologize. I have been looking for some information or maybe some sort of scale or graph that would show how much hard drive memory doe's one hour of HDV require?

Thank you.

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Old March 31st, 2008, 12:27 PM   #2
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From Wikipedia:

Quote:
HDV 1080i uses a recording data rate of 25 Mbit/s (3.125 MB/s) while HDV 720p records at 19.7 Mbit/s (2.46 MB/s)
multiply by your datarate (in MB/s) by 60 and you will have your answer.
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Old March 31st, 2008, 01:32 PM   #3
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Digital Heaven has cool widget to calculate disk space for various codecs.
http://www.digital-heaven.co.uk/videospace/index.php


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Old April 5th, 2008, 12:25 AM   #4
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AJA has a free one as well. Works really well, multiple formats.

http://www.aja.com/html/support_Io_swd.html >> Click on "Data Rate Calculator" near bottom of page.
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Old April 6th, 2008, 04:56 PM   #5
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720p or 1080i?

720p is about 9GB/hour
1080i is about 12GB/hour

Quote:
multiply by your datarate (in MB/s) by 60 and you will have your answer.
For 1080i that gives me 187.5. Are you sure?
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Old April 7th, 2008, 12:13 PM   #6
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Quote:
Originally Posted by Dylan Pank View Post
720p or 1080i?

720p is about 9GB/hour
1080i is about 12GB/hour



For 1080i that gives me 187.5. Are you sure?
That's right, your data rate for HDV 1080i is something like 3.3, same as DV.
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