Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!romp!auschs!d75!woan!ron
From: ron@woan (Ronald S. Woan)
Newsgroups: comp.dcom.modems
Subject: Re: How to increase throughput on 9600 bps modem?
Keywords: strange indeed
Message-ID: <3363@d75.UUCP>
Date: 15 Dec 90 20:38:30 GMT
References: <9PF^W}#@ads.com> <17@ghost.UUCP> <1990Dec14.174237.1708@svc.portal.com>
Sender: news@d75.UUCP
Reply-To: woan@peyote.cactus.org
Organization: Austin School of Hardknocks
Lines: 26


In article <1990Dec14.174237.1708@svc.portal.com>,
leonardr@svc.portal.com (Leonard Rosenthol) writes:
Lenny> 	THIS INFORMATION IS INCORRECT!!  It is true that you do not
Lenny> want to send compressed files across a modem on which
Lenny> compression is enabled - but the protocol doesn't make a
Lenny> difference, especially ZMODEM.  All of the current Macintosh
Lenny> ZMODEM implementations, and most of the PC/UNIX, etc. DO NOT
Lenny> support compression!  The ZMODEM spec does provide hooks for
Lenny> RLE compression, but Forsberg never recommended implementation
Lenny> due to lack of standardization.  His new ZMODEM-90 (Moby-Turbo)
Lenny> provides for a standard RLE compression across ZMODEM
Lenny> implemenation, so some newer products may offer it as an
Lenny> option, but you will not yet find one on the Mac or UNIX
Lenny> (rzsz).  And to my knowledge, only dsz on the PC has the
Lenny> ZMODEM-90 extentions.

This is strange indeed... The rzsz from Omen that I used a few years
ago at college had a compression option as did dsz from Omen...
Moby-Turbo is not compression, just a way of sending with less
overhead... Read the doc.s that come with dsz for details...

+-----All Views Expressed Are My Own And Are Not Necessarily Shared By------+
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