im not really familiar with the ripping programs but from all the games i have downloaded non of them was in iso format.
every each has been zipped and splitted and after the unpack i had 2 folder PS3_GAME and PS3_UPDATE
the correct format placeing the game in the folder is
/dev_hdd0/game/OMAN46756/GAMEZ/Batman (can be custom name, i use Game name + game code ) and in Batman u must have the PS3_GAME and PS3_UPDATE folders.
Have you tried to run the game with or without a disc in the ps3?
after you install open manager it will ask for to update eboot.bin
some games cannot run without a disc in the ps3, try that one too.