I have the US retail version of this disc and it most certainly has Cinavia, which DVDFab removes correctly. What you have is almost certainly a Korean knockoff of the original which may or may not have Cinavia but if it is a counterfeit, it may or may not contain the Cinavia infection but will not match the disc ID of the true original which means that DVDFab will not recognize the infection. Please post Cinavia questions in the correct forum in the future and attach the DVDFab internal log session.