Originally Posted by Al Leong
I agree, on an upscaling OPPO on OLED the Blu-Ray higher bitrate of encode looks better. The issue is most UHD movies are upscaled from 2K at encode and 1080p is not that much lower than the 2K resolution. OPPO does such a great job at upscaling to 4K, the high fidelity of Blu-Ray encoding makes for a very solid upscaled picture.
I watched Independence Day UHD Blu-Ray and all the while I'm saying to myself "I know the regular Blu-Ray in OPPO can do this" and I vowed to never purchase another older movie on UHD disc again.
The UHD discs are starting to come off as a hustle to me. I've started buying Blu-Ray collections on eBay and stock up on bargain bin titles.. for the most part in my opinion, until someone shoot and edit a film all in 4K and they start to look like the LG demo videos, I think I'm sticking with Blu-Ray/OPPO.
10 bits isn't a hustle. Banding due to 8-bit quantization is visible in every single Bluray I own, one of the most obvious flaws. Less obvious ones are the fact that SDR simply crushes colors into white as the brightness goes up in the scene, and the mastering process has to make a decision about which range of colors to squash in the final presentation. Highlights in SDR are spread out and flattened which causes you to lose insight into the scene and notably, depth cues, which are VERY important to your perceptual system. This is why people say HDR looks "almost 3D" like, and that's because SDR crushes out vital depth information that your eyes would otherwise have in order to make sense of the lights of the scene, as they do in real life.
SDR is not a realistic image, not even close.
To consider that level of distortion acceptable would be akin to listening to a CD without a tweeter. SDR signals compared to HDR signals are the audio equivalent of an 11khz-22khz sampling rate, not enough to capture the 20-20khz range of frequencies we can discern. The visual system is similar in that respect. We can see far more than the SDR specification allows, and SDR forces a huge compression on the dynamics, much like the audio "loudness wars" compress the dynamics of CDs and hence loses sound quality. Much has been written about that topic.
You are missing a ton of possible colors, and color variations, the brighter a given image region is. UHD video could be easily considered pointless unless you own a huge TV or a projector if you aren't sitting close enough to notice the increase in resolution. But increase in color gamut, dynamic range, and all without banding, are the magic sauce that will sell UHD. HDR really is that good. You're right, in some scenes HDR will not make a huge difference if you are going by memory, but HDR images are far punchier.
Of course you are free to only buy Blurays, stream low quality Netflix, or even DVDs for that matter. Nobody is stopping you.