Thanks d.j. - I'd been scratching my head over this for a while now. I don't believe there's any such thing as "Mastered in 4K" in Oppo 103 settings. Wonder if this also has something to with not being able to upscale 1080 p24 to 3840 p24, p30, or p60 using a Lumagen Radiance 2041 - same deal - image becomes soft. Exchanged numerous emails w/Lumagen and played around with the Lumagen settings quite a bit and eventually gave up on it as I don't have time to fool around with it to eternity. Add to this, Lumagen suddenly glitches out - always seems to happen when I have guests home and I'm trying to do a demo! So, removed Lumagen out of the loop and am happy with whatever Sony is doing, glitch-free.