Sign in to follow this  
Followers 0
devnulllore

Compression Ratio

13 posts in this topic

Hi,

 

I know it depends on what type of files are being compressed but what is currently the best compression program available? I don't care if it's free or pay I am just looking for the overall best compression ration across all file types.

 

Thanks,

Share this post


Link to post
Share on other sites

so far as i know 7-zip and 7z files are the best you can get for consumer usage anyway.

Share this post


Link to post
Share on other sites

7z probably (windows)

GZIP, LZMA, etc. (linux)

Share this post


Link to post
Share on other sites

are we talking about compressing a file or multiple files into a zip or tar.gz or rar

 

are we talking about compressing a wav into mp3 or m4a 

 

are we talking about compressing dv video into a web format like h264, divx, webM, flv

 

i used to use 7zip a lot to make .zip and .7z for a random assortment of files in a folder  

Share this post


Link to post
Share on other sites

Yup, specifically the LZMA SDK is free (in both senses of the word) and provides the highest compression entropy coding available, as far as I know. This is what the popular 7-zip program uses.

Share this post


Link to post
Share on other sites

but if you're looking to creates .zip format, the deflate method included in 7z program are not as efficient as those in kzip.

Share this post


Link to post
Share on other sites

so far as i know 7-zip and 7z files are the best you can get for consumer usage anyway.

 

It really depends on what it is compressing.  RAR5 has beat 7zip compression and speed recently in several tests.   Not to mention RAR's built in redundancy capabilities or ability to open partial rars.    There is no clear cut best, just use the best tool for the situation.

Share this post


Link to post
Share on other sites

PAQ and its derivative UDA, perhaps. Although it's extremely computationally expensive, as in hours, last time

Then there's Nanozip, although it's in blue hell now, but it's highly capable and also quite fast.

And then there's WinRK, with its own RK format, although the name says it's for Windows only and it's quite slow.

That'd be about it.

Share this post


Link to post
Share on other sites

i found rar to be the best all around.

Share this post


Link to post
Share on other sites

uharc used to be pretty good. Havent used it in a while.

Share this post


Link to post
Share on other sites

7-zip, the latest one, but you need a load of memory to get the best compression.

 

if you set the 'Dictionary' size to the largest you can (note the memory used for compression will be your limit depending on how much RAM you have).

 

if you have a load of RAM, the dictionary size can be larger and so compress much more.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0

  • Recently Browsing   0 members

    No registered users viewing this page.