Every PSP game has a unique identifier. For the Japanese version of Monster Hunter Portable 3rd, the ID is ULJM05800 . The HD remaster on PS3 and emulators also uses this exact folder name to maintain compatibility. This ID is crucial to know when transferring saves or modding your game.
The standard Japanese retail release (most common for English patches). monster hunter portable 3rd save data
: The Monster Hunter Portable 3rd HD Ver. on PlayStation 3 uses the same save format as the PSP. You can move your save back and forth between the handheld and the console to continue your hunt on a larger screen. Every PSP game has a unique identifier
Ensure your emulator has the "Encrypt Save" option toggled off in the system settings if you plan to use decrypted tools. This ID is crucial to know when transferring