I've made a little batch file for that.
You can find a link here

Due to the overwelming support I received to my enquiries, I've decided to work on a solution to your request. A batchfile that executes compress_san.exe but only needs a input-directory and optionally, an ouput-directory. Not a work of art but it works. batch_compress_san.zip extract it into your t...

I tried to use compress_san on CHASOUT.SAN from the "full throttle" game. After many tries to get the right syntax, I got this instead: C:\Program Files\ScummVM>compress_san CHASOUT.SAN DATA DATA2 frame: 0 Assertion failed: tag == 'FRME', file compress_san.cpp, line...