Start MHFU and select the "Import Character" option from the main menu. Verification:
It sounds like you’re asking whether the PSP Monster Hunter Freedom Unite “Save Data Extra Quality” feature is useful — short answer: yes, for specific benefits. psp monster hunter freedom unite save data extra quality
You retain your character's name, appearance, and gender from the previous game. How to Transfer (Import) Save Data Preparation: Start MHFU and select the "Import Character" option
On older hardware, loading data from a memory card consumes less power than constant UMD spinning, potentially extending play sessions. Managing Save Data and Extras psp monster hunter freedom unite save data extra quality