Path: utzoo!utgpu!cunews!spock!kim!kim From: kim@Software.Mitel.com (Kim Letkeman) Newsgroups: comp.dcom.modems Subject: Re: INFO-MODEMS Digest V90 #286 Message-ID: Date: 4 Nov 90 05:09:53 GMT References: <3182.27310BB8@zswamp.fidonet.org> Sender: kim@spock Organization: Public Switching, MITEL Corporation, Kanata, Ontario, Canada Lines: 22 In-reply-to: kim@Software.Mitel.com's message of 4 Nov 90 04:47:06 GMT w3In article kim@Software.Mitel.com (Kim Letkeman) writes: | In article <3182.27310BB8@zswamp.fidonet.org> root@zswamp.fidonet.org (Geoffrey Welsh) writes: | | | MNP5 uses a type of LZW compression algorithm, but its 'on the | | fly' approach has some weaknesses, including the fact that MNP5 | | will *lose ground* on well-compressed files (i.e. a .ZIP file | | moves faster with MNP5 *dis*abled than with it enabled!). | | Well, my own experience contradicts this. With my old SmartTeam | 2400bps modem I was very pleased that ZMODEM would tool along at an | average speed of 134cps or so. My new ATI with MNP5 was actually able ^^^ sorry ... 234cps. | to maintain 274cps over a long .ZIP file. This kind of blows your | argument up a bit. I've heard that "compress" files don't go as well, | but my own experience is that "ZIP" files do ok. I certainly won't be | turning off compression for ZMODEM transfers. -- Kim Letkeman kim@software.mitel.com uunet!mitel!spock!kim