WinRAR compression rate
I often find some RAR files are well compressed. No matter what setting I use to re-pack the files after unpacking, I never achieve the same small size again. Are there any tricks for that.
Here is an example:
552 MB (578,834,974 bytes) from here:
Site: https://mega.nz
Sharecode: /#!WrxRWJrJ!7M2kx0kjJK7u4Pm_dS5kGr5SafaR-L2qqciUL3bmBUI
File name: TeraByte Drive Image Backup & Restore Suite 3.38_fu11.rar
(password: softoroom)
Unpack and then re-pack with the
The WinRar settings are "Out-of-the-box" (default).
But as already said, this is a case of extreme compression with txt files built with millions of repetitive lines.
In any case, only WinRar (RAR5) could produce such extreme compression.
With WinRar (RAR4), WinZip or 7-ZIP, the compression for this case was around 110,000 to 180,000 MB.
Edited because the the test file is changed from 2GB to 4GB: Test_big_files_till_4GB.rar (WinRar compressed up to 4.53 MB! -->