[Coladam] More fun adventures in CP/M
jblenkle at sacnews.net
Fri Feb 19 23:38:35 CET 2010
Ah, duh! Re-reading my own message I should have realized...IYG has a "Y" in
----- Original Message -----
From: "Joe Blenkle" <jblenkle at sacnews.net>
To: "Ronald Mitchell" <bytehacker at tallcedarskennels.com>; "Daniel Bienvenu"
<newcoleco at yahoo.fr>
Cc: <coladam at adamcon.org>
Sent: Friday, February 19, 2010 2:25 PM
Subject: Re: [Coladam] More fun adventures in CP/M
> Ah, tricky...eh...so I use UNCRLZH on a .IYG file to get an IMG file which
> then turn into a disk image only to find there are LBR files on the disk
> image so I use DELBR to extract the files only to find they are CYM, DYC
> BYS which I then have to turn around and use UNCRLZH on again...
> Makes perfect sense to me...
> Joe B.
> ----- Original Message -----
> From: "Ronald Mitchell" <bytehacker at tallcedarskennels.com>
> To: "Daniel Bienvenu" <newcoleco at yahoo.fr>; "Joe Blenkle"
> <jblenkle at sacnews.net>
> Cc: <coladam at adamcon.org>
> Sent: Friday, February 19, 2010 1:58 PM
> Subject: Re: [Coladam] More fun adventures in CP/M
>>A long time ago, in a galaxy far far away........
>> .CYM meant that the file was compressed with the program CRLZH.COM
>> you can uncompress it with UNCRLZH.COM
>> Joe was quite right. There were all sorts of compression algorithms at
>> the time, squeezed, arked, arced, self-extracting arc, and yada yada.
>> The authors of each claimed various advantages, such as more efficient
>> compression, or smaller size, and the like.
>> If was all for use back in the time when sending files online with
>> equipment at 300 baud was expensive, so the fewer kilobytes you had to
>> send, the cheaper it was. Everything got compressed prior to sending,
>> which meant that it had to be uncompressed at the other end. When it
>> to compression/decompression software there were quite a few "flavours
>> the month". These days we've abandoned all of that in favour of ZIPS or
>> GUNZIPS or BZ's,TARs,TARBALLS and BZEDDEDTARBALLS - or is it
>> TAR.BZ ---
>> something like that.
>> Some things never change.
>> On 19-Feb-10, at 1:17 PM, Daniel Bienvenu wrote:
>>> I'm sorry Joe... that's all the page said realy, no mention of DYC or
>>> things like that. Y is close to Z so maybe it's related, I don't know.
>>> Coladam mailing list
>>> Coladam at adamcon.org
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> Coladam at adamcon.org
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