[comp.compression] ARJ 2.0 BUGGY?!

pingel@daimi.aau.dk (S|ren Pingel Dalsgaard) (04/21/91)

chuangss@en.ecn.purdue.edu (Shyne Song Chuang) writes:

>Hi there,

>Just wanted to let you guys know that there's a new version of ARJ that's
>out. Version 2 is *supposed* to compress as well as LHA 2.1x (gives perhaps
>the best compression around) AND is supposed to compress as fast as PKZIP!
>If any of you know an ftp site where it can be found, please mention it.
>I got my copy of ARJ 2.0 from Delphi.

>As usual, I haven't had time to test ARJ, so correct me if I'm wrong... But
>that's what I read in the .doc file.


>Cheers,
>Kevin


Oh yes ARJ is quite impressive, a BUG, however, has to be corrected soon
(or else I need to re-read to "features" chapter of the documentation)!

When using ARJ -t1 which is supposed to pack C program source files
better than normal, it pack EXE files even better, by simply truncating
the file to a size of 2Kb-3Kb!!

I am mailing the author to find a solution to the problem. All other
features seems OK, and it ranks with LHA now!

-pingel

#####################################################################
                                          e-mail: pingel@daimi.aau.dk
  _____  __  __ __  _____  _____  __           or pingel@jt.dk
 |     \|  ||  \  |/  ___||  ___||  |     Soren Pingel Dalsgaard,
 |  ___/|  ||     || (__ ||  _|_ |  |__   Dept. of Computer Science,
 |__|   |__||__\__|\_____||_____||_____|  Aarhus University,
                                          Denmark

"If builders built buildings the way programmers write programs,
 then the first woodpecker that came along would have destroyed
 civilization." - Gerald Weinberg
"Share and enjoy" - From Hitch Hikers Guide To The Galaxy
#####################################################################

rdippold@cancun.qualcomm.com (Ron Dippold) (04/24/91)

In article <1991Apr21.155821.2884@daimi.aau.dk> pingel@daimi.aau.dk (S|ren Pingel Dalsgaard) writes:
>Oh yes ARJ is quite impressive, a BUG, however, has to be corrected soon
>(or else I need to re-read to "features" chapter of the documentation)!
>
>When using ARJ -t1 which is supposed to pack C program source files
>better than normal, it pack EXE files even better, by simply truncating
>the file to a size of 2Kb-3Kb!!
>
>I am mailing the author to find a solution to the problem. All other
>features seems OK, and it ranks with LHA now!

This is in the documentation... in text mode, a CTRL-Z signals the end of
a file.  When it sees this (as might happen in a binary file), that's the end
of the file.  Suggested remedy:  Don't use text mode on anything but text!

You also might want to check the speed, text mode seems to be much slower
on extraction.