"PS3 Executable Not Found In Selected Folder"

[ryannefromTX]

I ripped my copy of Hakuoki using IsoBuster, put the .iso into "dev_hdd0/game/BLUS31187" and get this error when I select that folder to boot game. I'm guessing that just ripping the .iso isn't enough and I need to do something else. What am I missing? ^_^;;