The PSP emulation community widely recognizes Redump as the gold standard for disc verification. Redump maintains a comprehensive database of correct CRC (Cyclic Redundancy Check) values, SHA-1 hashes, and file sizes for legitimate game discs. When an ISO matches these reference values, it is considered "verified".
While the game saw various ports over the years, the PlayStation Portable (PSP) version—specifically versions utilizing the High Quality (HQ) assets or localized fan translations—remains a highly sought-after commodity for retro handheld gamers.