| File Type |
Compressed ISO Disk Image |
| Popularity |
Average |
| Category |
Disk Files |
| File Description |
Compressed .ISO disk image format used for archiving PlayStation Portable (PSP) games; may include up to nine levels of compression, but higher amounts of compression may cause the disk image to load slowly. |
| Program(s) that open cso files |
 |
Mac OS |
Prometeus
|
 |
Windows |
UMDGen
CiSO Converter
PSP ISO Compressor |
|
| Sponsored Links |
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| Updated 9/17/2007 |
Fix file extension .CSO errors. |