Article View: comp.ivideodisc
Article #212Re: How much can be put on a videodisc
From: Greg Calkin
Date: Mon, 03 Dec 1990 00:13
Date: Mon, 03 Dec 1990 00:13
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1418 bytes
In article <3977@mindlink.UUCP> a544@mindlink.UUCP (Rick McCormack) writes:
>DVI (Digital Video Interactive) offers full-motion interactive video using
>highly compressed images, and may de-rail CD-I development. Using SCSI at 12.5
>megabytes per second, using the standard CD-ROM form factor (Hey! That means
>its the same size! Why didn't you say that? Cause no-one else says that.
>OH!) with 650 Megabytes of storage, you can expect 72 minutes of full-motion
>video.
650M / 12.5 MBs = 52 sec
650M / 1.25 MBs = 520 sec
^^^^^^^^ normal scsi
72 min * 60 sec * 1.25MBs = 5400 Meg
72 min * 60 sec * 12.5MBs = 54000 Meg
650Meg / (72 * 60) ~= 150Kps
Where do you get 72 minutes of full video from ?
--
Greg Calkin, Systems Engineer and Dreamer (greg@tcnz.co.nz)
Thomas Cook N.Z. Limited, PO Box 24, Auckland CPO, New Zealand, Ph (09)-793920
Disclaimer : Would you buy a used car from someone with these opinions ?
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!comp.vuw.ac.nz!am.dsir.govt.nz!dsiramd!marcamd!tcnz2!gregReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!comp.vuw.ac.nz!am.dsir.govt.nz!dsiramd!marcamd!tcnz2!greg From: greg@tcnz2.tcnz.co.nz (Greg Calkin) Newsgroups: comp.ivideodisc Subject: Re: How much can be put on a videodisc Message-ID: <489@tcnz2.tcnz.co.nz> Date: 3 Dec 90 00:13:46 GMT References: <3977@mindlink.UUCP> Reply-To: greg@tcnz.co.nz (Greg Calkin) Organization: Thomas Cook NZ Head Office, Auckland, NZ Lines: 20