Actually, I just overlaid the grain plate to the image, but it improved a bit contrast and brightness as consequence!

Can you provide a small clip (let's say 1 min) from the BD, not re-encoded? Choose the part you like less - for grain lack in particular; I'd like to test the grain plate in motion.

Dark_Jedi seems to have added this title to Team Blu's projects, but I'm not sure about it... I offered my help with soundtracks and extra material, still no answer, though... if he will not be interested, and the test will be satisfactory, it could be one of my next project - whenever I'll solve the BD disc compatibility issues!