How to open CISO compressed ISO image .cso files
Have you had trouble opening the cso file on your computer? What are cso files? We explain what they are and recommend software that we know will open them.
What is cso file?
Files with cso extension are in most cases disk images saved in a common disk format for Sony Playstation. Very often used for backups of game disks. CSO format needs a special customized firmware so PSP can read them.
CISO compressed ISO image description
File extension cso is used for compressed ISO images. They are often used as a medium to play PSP games. The standard medium used by Sony PlayStation Portable is Universal Media Disc (UMD).
CSO format has nine levels of compression. Higher levels mean better compression, but slower loading times of compressed ISOs.
These cso files are created by PSP ISO Compressor.
CSO CISO compressed ISO file allows playing PSP games from memory card, but PSP must have installed user customized firmware, that includes support to reading of cso files.
Suggested software to open cso file
A PSP ISO compressing tool
There are other CSO filename extensions with the same .cso suffix
cso - Compiled Shader Object
A cso file extension is associated with the Compiled Shader Object format.