: A broader repository for various PSP titles in compressed format. 🕹️ About Athena (PS Minis) Platform : Sony PlayStation Portable (PSP) / PS3 / PS Vita Release Date : October 1, 2009 (Minis Launch) File Format : .cso (Compressed ISO) Size : Under 100MB (standard for Minis)

💡 : CSO files are compressed versions of ISOs. If you experience "stuttering" or long load times in-game, you can use a tool like UMDGen to decompress it back into a standard .iso format.

You can find the Athena (USA) CSO file on the , which hosts extensive collections of PSP Minis: