TIP: Click on subject to list as thread! ANSI
echo: locsysop
to: Paul Edwards
from: Bob Lawrence
date: 1996-12-15 08:53:16
subject: OS/2 4.0

PE> Now what you see here is that the compressed sizes are
 PE> different!!! 

 BL> Isn't that normal? If you zip a file ten times you get ten
 BL> subtly different zipped-sizes, all with the same CRC. It's a
 BL> bloody nuisance, and I've often wondered why that would be...
 BL> there's got to be something random involved in the zip.

 PE> No, it's not normal AT ALL! What evidence do you have of this?

  When I was writing my Delphi "BlueWave" QWK reader I tried to use
the zipped size to identify the packet. Every time I unzipped and
zipped (PKZIP) it was a slightly different size.

 PE> A single example will be fine. Same version of zip, with the
 PE> same parameters. BFN. Paul. 

  Jeeze, you're a nuisance...

  Shit! It won't do it now. I keep getting the same size... exactly.
That's what I expected, but it didn't happen the last time. 

  Nope... I just compressed an EXE a little, and a drawing a lot! and
it's always exactly the same size. I wonder what happened the last
time?

Regards,
Bob
___ Blue Wave/QWK v2.12
@EOT:

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