RE DV vs HDR10....I haven’t bothered to look at each version of the Blu rays I have that support both. What I will say is that on the DV Blu rays I have, HDR effects seem to pop more so than the ones that only have HDR10. The vast majority of them, at least. It’s usually most obvious in any scene where there are flames on the screen and I tend to only purchase lots of action and horror flicks that have lots of those.
So it may be subtle, but it’s subtly better. And after all, don’t all of us here spend hundreds(thousands?) for “subtly better?”
in this case, DV is a must have feature for any component I buy, and it doesn’t cost any extra!!