Question

78

Best compression method?

rated 0 times [ 78] [ 0] / answers: 1 / hits: 91534 / 2 Years ago, sat, june 5, 2021, 5:54:56

I want to compress a 16GB folder, but what's the best method? tar.gz? tar.bz2 rar? 7z? Would the archive be smaller if I first compressed in a method, then copy the compressed archive to a new folder, then re-compressed in some other method? I need to make it fit on a DVD (output maybe 8.5GB, don't remember) but putting "4370 MB" makes the compressed file be 2.5GB part.

BTW, what's the default compression method on Ubuntu?

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entmpy

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2 Years ago

answered 2 Years ago fenddy · Accepted Answer

The default is gz. The best results I get with 7z though.

Here is the results for a 1.4 Gb virtualbox container:

enter image description here

Best compression – size in MB:

7z 493

rar 523

bz2 592

lzh 607

gz 614

Z 614

zip 614

.arj 615

lzo 737

zoo 890

Source

enter image description here

Install

 sudo apt-get install p7zip-full