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- Path: news.ao.net!not-for-mail
- From: eric@eola.ao.net (Butt-head)
- Newsgroups: comp.dcom.modems
- Subject: Re: Internet Access with a 386
- Date: 5 Jan 1996 06:41:41 GMT
- Organization: Access Orlando
- Message-ID: <4cih75$7op@news.accessorl.net>
- References: <4c1vs3$pvm@ixnews8.ix.netcom.com>
- NNTP-Posting-Host: eola.accessorl.net
- X-Newsreader: TIN [UNIX 1.3 950515BETA PL0]
-
- Hans-Joachim Zierke (hajo@quijote.in-berlin.de) wrote:
- : umcompressed data. (Numbers beyond 57600 have no practical value for V34,
- : maybe you can transfer uncompressed sourcecode or index listings a little
- : faster, but for all standard data, values beyond 57600 are nonsense.)
-
- This seems to be a really common myth. 115200 or even 230400 is very
- useful for .MID files and the beginning of .MOD files (until you get to
- the instrument samples) For most executable programs and binary files,
- compression ratios from v.42bis much better than about 2.5:1 aren't that
- common, but for text files, its supposed to get 4:1 (and usually does get
- around 3:1). I used to play "tradewars" on BBS's with a 2400 with
- v.42bis, and the speed capture files transferred was actually LIMITED by
- the 19200 maximum DTE rate of the 2400 bps modem. This implies an 8:1
- compression ratio - it really does happen sometimes - therefore, even
- 230400 would be limiting on a 28.8K modem, and 460800 would bring a
- little extra speed to the transfer (if any modem supported it). Useful
- files that compress this well with v.42bis are EXTREMELY rare, but parts
- of files that compress better than 2:1, or even 4:1 are not that uncommon.
-