@cureo
keys.bin is not need since 3.03 OE-C (or something around that version). But if you have game converted with older version of popstation, keys.bin is need even on newer firmwares. I always convert with Popstation Gui 3.00 beta, adn all my games work on any pops version (3.10 - 3.52) without keys.bin
But I don't have FF7, maybe it depends on game?