the svf file can be made with this:
https://www.traction-software.co.uk/SFVChecker/

the compression ratio "optimum" give the smallest size in winrar.
but 7zip will give a better size reduction than winrar.

 

ask Fitgirl

 

I don't see "Optimum" selection for compression in WinRar. (?)

 

I think he meant "best"

 

OK thanks!
That is some evidence that my brain is still working.

 

In my opinion one of the most vexing issues with rar files is the checksum error, which prevents the extraction of data from the compressed folder. Don’t be concerned about files that are blocked. As a method you can keep the broken files, the benefit of selecting this option is that it overlooks, if there is any file corruption and assists in extracting the material from the zip folders. Initially you must have a winrar with a inbuilt option of fixing the checksum error and repair function. It never happened to me to encounter such problems cause I’m using only how to open RAR files on Mac , and it works properly well without bugs.

 

Last edited: Nov 9, 2021