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From: marwood@DMC-CRC.ARPA.UUCP
Newsgroups: comp.os.cpm
Subject: Crunched files
Message-ID: <8703150610.AA16732@dmc-crc.ARPA>
Date: Sun, 15-Mar-87 01:10:49 EST
Article-I.D.: dmc-crc.8703150610.AA16732
Posted: Sun Mar 15 01:10:49 1987
Date-Received: Sun, 15-Mar-87 13:48:22 EST
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Ralph Hyre asks about the significance of .?z? files.
These files are crunched files, which use a data compression algorithm which 
generally produces smaller compressed files than the "squeezed" .?Q? files.    
The means to "crunch" and "uncrunch" may be found in PD:<CPM.SQUSQ>
CRUNCH23.LBR.1 on SIMTEL20.   Crunched files should not be confused with 
.AZM files which are used as source files by several Z80 assemblers, e.g.
Z80MR.  Non-crunched .?Z? files crunch into .ZZZ files.

Gordon Marwood