Skip to content
PSP ISO compression tool
C Makefile
Find file
Fetching latest commit…
Cannot retrieve the latest commit at this time.


ciso is a simple commandline utility to compress PSP iso files.

This package is an OSX port of a package provided by Ubuntu:


make install # (optional)


To decompress a cso file:

ciso 0 infile.cso outfile.iso

To compress an iso file:

ciso level infile.iso outfile.cso

where level ranges from 1 (fast, poor compression) to 9 (slow, high compression).

Something went wrong with that request. Please try again.