Home > Archive > Compression > April 2005 > Is there a freeware encoder (not only decoder) for RAR compression?
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| Author |
Is there a freeware encoder (not only decoder) for RAR compression?
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| Marcus Ottmar 2005-02-22, 8:55 pm |
| There are a couple of freeware tools which offer decompression of rar archives.
But no one has an option of encoding. Does someone know such a tool?
Marcus
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| On Tue, 22 Feb 2005 21:23:54 +0100, marc2000@gmx.net (Marcus Ottmar)
wrote:
>There are a couple of freeware tools which offer decompression of rar archives.
>But no one has an option of encoding. Does someone know such a tool?
I don't think so, because (Win)RAR code is closed source.
Greetings from H. Desmet
West Flanders, Belgium, Europe.
http://www.rarsoft.be
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| Fallon 2005-02-23, 3:55 pm |
| No. It's a proprietary format.
If you donot want to pay for WinRAR and donot want to use it cracked,
you can start to count to 40 days everyday. In practice you can also
use a 'rar.exe' forever.
If you still see a significant problem, use free quality stuff like
winuha, 7zip, or even winimp (multivolumes).
Marcus Ottmar wrote:
> There are a couple of freeware tools which offer decompression of rar
archives.
> But no one has an option of encoding. Does someone know such a tool?
>
> Marcus
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| Jim Leonard 2005-02-23, 3:55 pm |
| Marcus Ottmar wrote:
> There are a couple of freeware tools which offer decompression of rar
archives.
> But no one has an option of encoding. Does someone know such a tool?
No such tool exists.
Considering that RAR is one of the best-of-breed general-purpose
archivers, why not just register it?
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| Tom St Denis 2005-02-23, 3:55 pm |
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Jim Leonard wrote:
> Marcus Ottmar wrote:
rar[color=darkred]
> archives.
tool?[color=darkred]
>
> No such tool exists.
>
> Considering that RAR is one of the best-of-breed general-purpose
> archivers, why not just register it?
I run linux you insensitive clod!
;-)
[N.B. they prolly have a linux version just I like my tar/bzip2].
Tom
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| On Tue, 22 Feb 2005 21:23:54 +0100, marc2000@gmx.net (Marcus Ottmar)
wrote:
>There are a couple of freeware tools which offer decompression of rar archives.
>But no one has an option of encoding. Does someone know such a tool?
>
>Marcus
Try http://www.7-zip.org/
High compression ratio in new 7z format with LZMA compression (better
than winrar)
7-Zip is free
Supported formats: 7z, ZIP, CAB, RAR, ARJ, GZIP, BZIP2, Z, TAR, CPIO,
RPM and DEB
For ZIP and GZIP formats 7-Zip provides compression ratio that is 2-10
% better than ratio provided by PKZip and WinZip
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| Jim Leonard 2005-02-23, 3:55 pm |
| Tom St Denis wrote:
> I run linux you insensitive clod!
>
> ;-)
;-)
> [N.B. they prolly have a linux version just I like my tar/bzip2].
Even if they do, I would stick with tar.bz2 for compatibility.
BTW, you can squeeze 1-5% out of tar+bzip2 if you add files to the
archive based on type (determined either by `file` or extension). I
wrote a script to sort the input based on the output of `file *` and it
always outperforms a simple "tar cf - * | bzip2 > file.tar.bz2".
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| Jim Leonard 2005-02-23, 3:55 pm |
| flagg wrote:
> High compression ratio in new 7z format with LZMA compression (better
> than winrar)
Not quite; according to www.maximumcompression.com, they are just about
equal in performance. (In the Multiple Large File Collection, Winrar
beats 7-zip :-)
> 7-Zip is free
This is true, with a free SDK as well.
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| Errol Smith 2005-02-25, 3:55 am |
| On 23 Feb 2005 10:34:45 -0800, Jim Leonard wrote:
>flagg wrote:
>
>Not quite; according to www.maximumcompression.com, they are just about
>equal in performance. (In the Multiple Large File Collection, Winrar
>beats 7-zip :-)
>
>
>This is true, with a free SDK as well.
7-zip is great but it can't create RAR files. (which is a shame). I'm
sure if they really tried they could create uncompressed rar files,
but there wouldn't be much point :)
7-zip compression can be improved if you tweak the options a bit. Eg
raising the word size from it's default (usually 32 or 64 bytes) to
255 (the maximum) usually gives a small increase in compression ratio
with little performance drop (and no increase in memory usage for
compression or decompression either).
For making zip/gz files I ALWAYS use 7-zip wtih compression level
"ultra", word size "255".
Errol Smith
errol <at> ros (dot) com [period] au
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| Herr Bert 2005-04-23, 3:55 pm |
| Marcus Ottmar schrieb:
> There are a couple of freeware tools which offer decompression of rar archives.
> But no one has an option of encoding. Does someone know such a tool?
>
> Marcus
>
sorry, it seems there is none. if an author wants to implement the .rar
packing feature in his packing tool, then i think he has to pay for a
license.
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