A RAP file is completely different. It does not contain game data. Instead, it is a (typically 56 bytes to a few kilobytes in size).
Check that the RAP filename matches the Content ID exactly. Do not rename it. pkg rap files ps3 free
Ensure HEN is enabled. When you launch the game for the first time, HEN automatically looks into the USB's exdata folder to "activate" the file. A RAP file is completely different