Originally Posted by Paul77nz
That's interesting, I had read that Amazon had pretty much fully implemented HDR10+ on a large number of their HDR titles. Of course, I have no way to test this.
You've nailed the problem. No-one, not even the people with the allegedly compatible TVs, has any way whatsoever to test it!
All we have ever seen are two (maybe three) press releases which make that claim. But, the last we heard was at CES 2018 they were having trouble getting it to work properly. Amazon's own help page (https://smile.amazon.com/gp/help/cus...-no-redirect=1
) says that "If your television is compatible, and the Prime Video title supports it, an "HDR10+" label appears instead of the normal "HDR" label in the video details.". Not one user has ever seen the HDR10+ label appear in Amazon's app on their Samsung 2017/8 model TV. So even Amazon are not using it yet.
Anyone repeating the claim that Amazon are using it should be challenged "so why are they so shy about actually proving it?". You can't use the TV's Info details to see what kind of signal is being displayed, because it's an App, and that info banner doesn't work in Apps. (Just seen that LG is the same in this respect, no way of getting resolution or Framerate, or any other details up on screen on demand for the Amazon Prime app).
So if you can't tell on the TV, and the App doesn't have the logo, why on Earth would anyone believe a marketing press release claiming something so wild that can't be shown. The launch of a brand new HDR format, with no content, impossible to tell apart from plain HDR10, no logos or branding in sight anywhere. It's for all intents and purposes vapourware.
Imagine if the same thing happened with dolby vision. A press release said, "don't worry, it's all in dolby vision, we promise". But there's no logo in the app, nothing happens on the TV to tell you it's dolby vision, and you can't tell the difference side by side with another TV. How could you ever sell a TV to someone on that basis? Is that how to launch a format? This is why after two years of this charade I've started just flatly denying that it exists on Amazon, as it's the most logical explanation. It's only been seen at private trade shows, like this one (as far as I can tell, this was the last time HDR10+ was seen):