any good compression format?

This is a discussion on any good compression format? within the A Brief History of Cprogramming.com forums, part of the Community Boards category; are there any other GOOD compression formats? I know of ZIP, and all that but are there any others that ...

  1. #1
    Registered User compjinx's Avatar
    Join Date
    Aug 2001
    Posts
    214

    any good compression format?

    are there any other GOOD compression formats? I know of ZIP, and all that but are there any others that are better?
    "The most overlooked advantage of owning a computer is that if they foul up there's no law against whacking them around a bit."
    Eric Porterfield.

  2. #2
    Code Goddess Prelude's Avatar
    Join Date
    Sep 2001
    Posts
    9,796
    My best code is written with the delete key.

  3. #3
    Registered User compjinx's Avatar
    Join Date
    Aug 2001
    Posts
    214

    Hmmm...

    but like, what are the pros and cons of these? are they all pretty much the same? do some work better on some file types? which one of these would be good for backing up large 300meg files?

    to make a long question short: any reccomendations?
    Last edited by compjinx; 03-14-2002 at 10:57 PM.
    "The most overlooked advantage of owning a computer is that if they foul up there's no law against whacking them around a bit."
    Eric Porterfield.

  4. #4
    Seņor Member
    Join Date
    Jan 2002
    Posts
    561
    You can make a zip and make a rar of that and on and on and it keeps compressing.

  5. #5
    $null
    Guest
    Originally posted by tim545666
    You can make a zip and make a rar of that and on and on and it keeps compressing.
    not a 100% correct there... there is a limit you can only compress certain file types so much... and once it is a zip compressing it to the rar form will have minimal benifits...

  6. #6
    Seņor Member
    Join Date
    Jan 2002
    Posts
    561
    I've done it before and it worked fine for me.

  7. #7
    Registered User compjinx's Avatar
    Join Date
    Aug 2001
    Posts
    214

    Hmmm...

    are any of the ones Prelude found any good?
    "The most overlooked advantage of owning a computer is that if they foul up there's no law against whacking them around a bit."
    Eric Porterfield.

  8. #8
    Registered User alex's Avatar
    Join Date
    Sep 2001
    Posts
    132
    Hi!

    rar, arj and zip are good archivers, capable of storing multiple files. But not free software (only the un-archivers are freely available, but the compression algorithm is proprietary and you must have a license to use the compression software). The rar format has some special compression algorithms for multimedia files. They are very good but rarely used. Also, rar has an option to generate recovery-data for very important backups. If the archive is partially damaged (designed to handle unreadable sectors on floppies/harddisks), it should still extract the data without problems.

    gzip cannot store multiple files, but compresses equally well as the zip format. Combined with tar utility it makes a good archiver, well accepted in the unix world. Both programs are free software. bzip2 is also a free single-file compressor, but much better than gzip. Most linux-systems have bzip2 installed, but for some reason it is not yet well-supported on proprietary unices.

    In terms of compression ratio, the ranking usually (this depends on the types of files used of course) is, from worst to best: zip, tar/gzip, arj, tar/bzip2, rar. Although tar/bzip2 and rar are very close.

    Hope this helps...

  9. #9
    Registered User
    Join Date
    Oct 2001
    Posts
    375

    Thumbs up

    But not free software (only the un-archivers are freely available
    Except for this little beauty.
    Allegro precompiled Installer for Dev-C++, MSVC, and Borland: http://galileo.spaceports.com/~springs/

  10. #10
    Registered User compjinx's Avatar
    Join Date
    Aug 2001
    Posts
    214

    Hmmm...

    Thank you guys, this really helps.
    "The most overlooked advantage of owning a computer is that if they foul up there's no law against whacking them around a bit."
    Eric Porterfield.

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. function returning hour in either 12 or 24 hour format
    By stanlvw in forum C Programming
    Replies: 4
    Last Post: 01-01-2008, 06:02 AM
  2. Compression/Decompression Wave File and MP3
    By cindy_16051988 in forum Projects and Job Recruitment
    Replies: 51
    Last Post: 04-29-2006, 07:25 AM
  3. A Better Format Simulator
    By toonlover in forum C++ Programming
    Replies: 2
    Last Post: 01-07-2006, 06:14 PM
  4. Seeking Format Advice
    By PsychoBrat in forum Game Programming
    Replies: 3
    Last Post: 10-05-2005, 06:41 AM
  5. efficient compression algorithm pls
    By gooddevil in forum C Programming
    Replies: 7
    Last Post: 05-08-2004, 04:33 AM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21