.CSO File Extension

Compressed ISO Disk Image

Developer N/A
4.2  |  238 Votes

What is a CSO file?

Compressed .ISO disk image file used for archiving PlayStation Portable (PSP) games; can incorporate up to nine layers of compression; created by programs, such as Prometeus and YACC (Yet Another CSO Compressor).

More Information

NOTE: Greater compression levels can cause CSO disk images to load slowly.

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Programs that open CSO files


Compiled Shader Object File

Developer Microsoft
4.1  |  104 Votes

File created by compiled .HLSL files written in High Level Shader Language (HLSL), which is shading language developed by Microsoft; contains a compiled shader object, which derives from a HLSL file; retains the same name as the HLSL file but appears as a CSO file after the compile in Microsoft Visual Studio.

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In the OpenGL SDK, CSO files can be compiled using the glCompileShader method. glCompileShader compiles HLSL strings into the shader object. Information about whether or not a compilation was successful can be obtained through the shader object's information log by calling glGetShaderInfoLog.

Programs that open or reference CSO files

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