-r does not wotk with %

[prdp19]

Hi,

at help.txt i read
-r15.7%: generates 15.7% recovery

Does not work. I get

Values for out and input-slices are required
Enter parpar --help for usage information

%PARPAR% -s 1M -S -r15.7% -o %dir%\filename.par2 -R %dir%\

For example

%PARPAR% -s 1M -S -r100 -o %dir%\filename.par2 -R %dir%\

Works.

What am I doing wrong?

[prdp19]

Sorry, the problem was escaping.

With

%PARPAR% -s 1M -S -r15.7%% -o %dir%\filename.par2 -R %dir%\

It works.

Why do I have to specify -s? That is not necessary with MultiPar and par2cmdline-turbo either?
I have files of different sizes and never know what to set for -s? Is there a value that I can use for all sizes?

An automatic function that calculates the size based on the source files would be cool!

[animetosho]

The block size/count is a required PAR2 parameter. par2cmdline and par2j just have a default value if you choose to not specify it.

From memory, par2cmdline just uses 2000 blocks (which is equivalent to -s2000 in ParPar). par2j selects a size such that size=count*100. Currently there's no equivalent option to replicate par2j's behaviour in ParPar (though it does exist in ParParGUI).

The block size/count incurs a number of tradeoffs, and only really the user can determine the tradeoffs they desire. Having some automatic value has been asked for, but unfortunately there's no real "ideal" value for it.

[animetosho]

Added the ability to simulate par2j's default via -s0.5w*10.

I think keeping -s as a required parameter is sensible - it's fundamental to the generated PAR2 and only really the user can determine an appropriate value.