So I looked in the files for a game (specifically Fullmetal Alchemist: Brotherhood [ULES-01432] or Hagane no Renkinjutsushi - Fullmetal Alchemist - Senaka o Takuseshi Mono [ULJS-00220] ) and in both versions I found a lot of .fpk files in a folder called "Sound" (which i assume to have music or voice lines in it), but I'm not sure how to open or potentially convert them to another file type to be used. I don't have too much knowledge on this kind of stuff or anything related to PSP, so I'm just looking for some help on what to do or where to start. Thanks in advance!