Approximate Disk Usage w/ HDMI Capture? at DVinfo.net

Peter Moretti · January 28th, 2008, 05:29 AM

Approximately how much disk space per minute should I expect CineForm to use when capturing at its highest quality setting from an Intensity card?

Thanks!

P.S. Is a single 7200 RPM drive really fast enough?

David Taylor · January 28th, 2008, 09:23 AM

Peter,

Using CineForm's Filmscan 1 setting (the highest we recommend - internally we call FS2 "overkill") you can expect a compressed data rate of 15 - 20 MB/sec, or about 1GB/hour. The "High" setting will be about 15%-20% smaller.

The variable bitrate nature of our algorithm makes the variable nature of the final result because the size of compressed files is a function of the image "complexity" of the incoming source. The numbers above are for never-before-compressed sources. If you have pre-compressed source (HDV, AVCHD, even D5) your resulting files should be even smaller.

Mike McCarthy · January 28th, 2008, 11:53 AM

And by 1GB an hour, he means 1GB per MINUTE and therefore 60GB per hour.

Peter Moretti · January 28th, 2008, 05:34 PM

Mike, thanks for the correction ;).

BTW, IS a single 7,200 HD really fast enough?

David Newman · January 28th, 2008, 05:36 PM

Yes, a modern 7200 RPM drive sustains 35-50MBytes/s

January 28th, 2008, 05:29 AM	#1
Peter Moretti Trustee Join Date: Mar 2007 Location: Sherman Oaks, CA Posts: 1,259	Approximate Disk Usage w/ HDMI Capture? Approximately how much disk space per minute should I expect CineForm to use when capturing at its highest quality setting from an Intensity card? Thanks! P.S. Is a single 7200 RPM drive really fast enough?

January 28th, 2008, 11:53 AM	#3
Mike McCarthy Major Player Join Date: Oct 2007 Location: Northern California Posts: 517	And by 1GB an hour, he means 1GB per MINUTE and therefore 60GB per hour. __________________ For more information on these topics, check out my tech website at www.hd4pc.com

January 28th, 2008, 05:36 PM	#5
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	Yes, a modern 7200 RPM drive sustains 35-50MBytes/s __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

January 28th, 2008, 09:23 AM	#2
David Taylor Major Player Join Date: Sep 2003 Location: Solana Beach, CA Posts: 853	Peter, Using CineForm's Filmscan 1 setting (the highest we recommend - internally we call FS2 "overkill") you can expect a compressed data rate of 15 - 20 MB/sec, or about 1GB/hour. The "High" setting will be about 15%-20% smaller. The variable bitrate nature of our algorithm makes the variable nature of the final result because the size of compressed files is a function of the image "complexity" of the incoming source. The numbers above are for never-before-compressed sources. If you have pre-compressed source (HDV, AVCHD, even D5) your resulting files should be even smaller.

January 28th, 2008, 05:34 PM	#4
Peter Moretti Trustee Join Date: Mar 2007 Location: Sherman Oaks, CA Posts: 1,259	Mike, thanks for the correction ;). BTW, IS a single 7,200 HD really fast enough?