This is a video I made, to show how easy it is to crack npdrm content, its not in any way a secret method, all the tools I used are public, I used ebootFIX/MOD, those NPDRM tools just released and the NPDRM decryption keys. its not at all hard.
Cracking NPDRM content with ebootFIX - YouTube
Credit for the tools go to their makers.
here is more proof that it is Earthworm Jim HD, no EBOOT.BIN or PARAM.SFO swapping.
Cracking NPDRM content proof. - YouTube