Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: CCC Archives - 70MB instead of 200MB! - ZIP vs. CAB

Author: Sally Weltrop

Date: 12:11:07 06/13/02

Go up one level in this thread


On June 13, 2002 at 09:13:02, Daniel Clausen wrote:

>On June 13, 2002 at 08:52:02, Sally Weltrop wrote:
>
>>On June 13, 2002 at 08:20:04, Gian-Carlo Pascutto wrote:
>>
>>>On June 13, 2002 at 06:49:22, Sally Weltrop wrote:
>>>
>>>>I converted all the CCC archives from 9/97 - 2/02 that were in ZIP format to CAB
>>>>format. It was a substantial savings in size. I lopped off about 65%
>>>>excessthrough better compression. The CAB format can easily be extracted with
>>>>WinZIP and many of the other compression tools out. If ANYONE that hosts these
>>>>files wants me to upload them to their site just let me know and I'll do it. It
>>>>could save a lot of time for someone with dial-up connections to get a hold of
>>>>the archives or for those trying to save space.
>>>>
>>>>CAB even did better in this instance than the latest versions of ACE & RAR
>>>
>>>I don't think CAB is supported outside Windows.
>>>
>>>Tar + bzip2 would be good universal solution that will be hard to beat.
>>
>>ZIP ----- 5.37MB
>>CAB ----- 2.20MB
>>BZip2 --- 3.21MB
>>
>>Now do u mean TAR them first THEN Bzip'em? or just BZip2 as a TAR format?
>>
>>I tried that and they came out the same 3.21MB
>>
>>I can do this if u want, convert them to BZip2 TAR format. it ends with a BZ2
>>extension
>>>
>>>--
>>>GCP
>
>A TAR+bzip2 solution surely would be nice, so non-Windows people can extract
>them too...
>
>You should first tar everything in one file and afterwards bzip2/gzip the single
>file. Unlike with Winzip, the process of archiving and compressing is separated
>in 2 commands.
>
>gzip/bzip/winzip are general-purpose compressors. They do quite good on average,
>but specialized compressors (ie they know what kind of input they get) will
>always be better.

BZip2 basically does this in one shot. They come out the same EXACT size.
>
>Sargon



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.