Xref: utzoo comp.dcom.modems:8562 comp.mail.uucp:5965 Path: utzoo!mnetor!tmsoft!torsqnt!hybrid!scifi!bywater!uunet!shaman!jiro From: jiro@shaman.com (Jiro Nakamura) Newsgroups: comp.dcom.modems,comp.mail.uucp Subject: News compression and T2500's Message-ID: <1991Mar3.213145.6760@shaman.com> Date: 3 Mar 91 21:31:45 GMT Sender: jiro@shaman.com (Jiro Nakamura) Organization: Shaman Consulting Lines: 19 Folks - I was wondering about CNews compression formats and what was the most efficient way to transport news. If my memory serves me correctly, Cnews using compress (1) to compress the news batches, and compress uses a Lempel-Ziv compression format. Now..... I was wondering if it might be more efficient to *not* pre-compress the news at the *system* level, but let the modem do the compressing itself. I think PEP compression is LZW (right?) and therefore equivalent to compress, but isn't v.42 LAP-M compression more efficient that LZW? If so, then wouldn't it be better to not compress batches and let the LAP-M do the dirty work for us? Any one have any comments? - jiro nakamura jiro@shaman.com -- Jiro Nakamura jiro@shaman.com Shaman Consulting (607) 253-0687 VOICE "Bring your dead, dying shamans here!" (607) 253-7809 FAX/Modem