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Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!decwrl!sgi!shinobu!odin!cook
From: cook@sgi.com (Doug Cook)
Newsgroups: comp.graphics,rec.video,comp.graphics.visualization
Subject: Re: Video Recorders with single frame step/record
Message-ID: <1990Nov15.172957.15583@odin.corp.sgi.com>
Date: 15 Nov 90 17:29:57 GMT
References: <3361@bruce.cs.monash.OZ.AU> <JIM.90Nov14215919@baroque.Stanford.EDU>
Sender: news@odin.corp.sgi.com (Net News)
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 19

In article <JIM.90Nov14215919@baroque.Stanford.EDU> jim@baroque.Stanford.EDU (James Helman) writes:
>
>I've heard that some of the lower end single frame recorders lack
>mechanical durability.  Single frame recording should be quite hard on
>transport mechanisms: rewind past insertion point, preroll for 5-8
>seconds to achieve sync and speed, lay down frame, stop, and repeat
>the sequence 27,000 times for 15 minutes of video!!!

This is true. One of the common things people do is use a video board with
multiple frame buffers, or several synchronized boards, so that several frames 
may be laid down at once. This saves wear-and-tear on the video deck.

	-Doug

Doug Cook			       |"Like a breakfast at the egg-house,
Video Group, Advanced Systems Division | a waffle on the griddle,
Silicon Graphics, Inc.		       | I'm burnt around the edges,
Mountain View, CA		       | but I'm tender in the middle."
				       |		-Adrian Belew