The filename explicitly states “ENG--USA” meaning:
Chains of Olympus is widely regarded as one of the best games on the PSP. It won several "Handheld Game of the Year" awards and is credited with legitimizing the PSP as a platform for serious action games. It eventually received a remaster for the PlayStation 3 as part of the God of War: Origins Collection. CSO compression level : Typically level 1–9 (higher
Despite the limitations of the PSP hardware, Chains of Olympus retains the core "hack-and-slash" gameplay that defined the series. Despite the limitations of the PSP hardware, Chains
| Component | Original UMD | “RIP” Version | | :--- | :--- | :--- | | FMV Videos | High-bitrate, full-quality | Re-encoded at lower bitrate or removed altogether | | Voiceovers | Multilingual (English, French, Spanish, German, Italian) | Often stripped to ENG-Only (as noted in filename) | | Music | Uncompressed or high-quality audio | Converted to lower-bitrate MP3/ATRAC | | Texture Mosaics | High-resolution | Downsampled or compressed | | Dummy Data | Empty files used to push data to faster outer edge of UMD | 100% removed | they no longer manufacture PSPs
Sony has historically been aggressive against PSP piracy. They patched vulnerabilities with every firmware update. They also shut down sites hosting PSP ISOs and CSOs. Today, they no longer manufacture PSPs, but the copyright on Chains of Olympus remains active (Sony Interactive Entertainment owns it).