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#7001 |
Blu-ray Knight
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Just bizarre. I have watched thousands on mine (and yes I mean literally thousands, not figuratively) and I may get an occasional glitch on a few used Blu Rays I've bought, but of the few UHDs I've had an issue with I've done the washing in mild detergent trick. And all up I'm looking at maybe ten or so - and of those I've put them in the PC and would get the read issue on them also.
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#7004 | |
Blu-ray Prince
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Mission Impossible Fallout 4k.... and it never repeated the issue. *61 blu ray--- and it did the same on other players. This is an outstanding player--- I really love it! ![]() |
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#7006 |
Banned
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Well My UB420 arrived safely from Amazon (with a shipping label just slapped on the bottom of the player box and left outside by the door advertising a free UHD player!).
I got it set up and I've tested the optimizer with a few discs. I'd like to hear what others think about my results. Maybe Geoff can explain what is happening with my tests. So I started off with Aquaman. I set the player's TV HDR setting to "Basic" as supposedly my 2016 LG LCD TV is limited in HDR range (it's not premium certified). I then toggled between optimizer on and off. Off looked incredibly overblown throughout the many bright scenes in the film. Chapter 6 is a great example of an extremely bright scene. With it off, the TV was blowing out a good portion of the scene from shot to shot. So much bright white and tons of it was just all blown out. Toggling the optimizer to on instantly had a major effect, but I wouldn't call it an improvement. It immediately dialed the brightness down a ton. There was instantly a huge amount of hidden detail in the bright whites I could see, but it looked dim and lifeless, with no "pop" whatsoever. It was very dull and flat. Toggling back to off and it was instantly blown out again and tons of detail was washed out in bright blaring whites. I then decided to set the player's TV HDR setting to "medium" instead of "Basic". I then replayed the scene, pausing on some shots. Again I toggled the optimizer on and off. Off looked the same as before of course, since there was no processing, but interestingly, with it on, now the image was a vast improvement. It still dialed down the intense whites, so I could make out a lot more detail in those bright areas, but it was a lot brighter than when it was set to "Basic", and there was still lots of "pop" in the image. There wasn't as much detail visible in those super-bright areas of chapter 6 as when it was set to "Basic", but it was still a huge improvement over the optimizer being disabled. Skipping around throughout the disc I saw the same improvements throughout. A shot late in the film by the ocean was striking - with the optimizer off, the TV was blowing out the waves to the point where it was mostly just white. With the optmizer on, instantly there was way more detail in the waves as they were dialed back. They were still nice and bright, but now I saw detail in the crashing waves. Clouds in the background that were blown out were now much more vivid in detail. Dark areas were not affected in any way that I could see. Only bright areas were improved. It truly brought out the image in a way my TV previously couldn't display. I then moved on to a few other titles. 2001 in "Basic" dialed the brightness back a bit in many of the shots of the Earth and ships early on, and even the white walls inside the station, but again, they were duller and lifeless. Not nearly as dramatic as Aquaman, but still dialed back a bit too much. It looked fine with it off. Setting the player back to "Medium" was interesting - there was no change whatsoever when toggling the optimizer on and off. The image was identical. So it only had an effect if the player was set to "basic" for TV HDR. Other titles also had no effect when set to "Medium" - Peter Jackson's King Kong, Matrix Revolutions, Mortal Engines, Disney's Lion King (cgi remake), The Revenant - all looked identical (and fine) even on the brightest scenes, whether the optimizer was on or off. Pacific Rim had a somewhat mild but still noticeable effect when toggling on and off when TV HDR brightness was set to "Medium". So the only two titles I tested that had any effect between on and off when the player was set to "Medium" was Aquaman, which was a gigantic improvement with optimizer on, and Pacific Rim, which was a much less dramatic but still noticeable improvement when set to on. All other tested titles had no effect. So is this because Aquaman and Pacific Rim were mastered to a brighter peak nit, so the optimizer kicks in when the player is set to medium, thus improving the mapping to my TV? The other tiles were mastered to a lesser brightness so the optimizer isn't making any changes, thus the image is identical whether it's on or off? So what was happening when I tested Aquaman at "Basic"? Was it just crunching the HDR highlights down more than necessary for my TV? I thought "Basic" was what I would need to use but it seems with the title I've tested, it just makes the image look flat and dull. At "Medium", at worst it seems to have no effect if left on and at best can make a huge improvement over it being off. It sounds like leaving it on and keeping the setting on "Medium" is the way to go on my TV. Does this make any sense? Have others in here had the same experience with the optimizer? I'm guessing it will give much different results depending on what TV you have. Mine is the LG UH8500. The question I have is why my TV maps out Aquaman so badly? With optimizer disabled it's unbelievable how blown out the highlights are. The optimizer works wonders with this title on my set. |
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#7008 | |
Blu-ray Emperor
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In case people don't know, the Optimiser levels are as follows: Basic = 500 nits Medium/High = 1000 nits OLED = 1000 nits Super High = 1500 nits So with those 1000+ nit titles and Optimiser set to Basic (500 nits) then it will visibly reduce the brightness of the highlights. With it set to Medium (1000 nits) or higher it will not touch the image. But while the 420 has the Optimiser it doesn't have the metadata info screen of the 820 so you won't know for sure what movie has what metadata. BUT general rule is that Paramount, Fox, Disnee and Universal stick to 1000 nit masterings with Warners and Sony being the ones that regularly exceed 1000 nits (though the Matrices and 2001 are 1000 nits or below). Lionsgate tend to mix it up. Aquaman looks as nuked as it does on your TV because it's what I would call "fake HDR", not the YouTube superstar definition of fake HDR as being glorified SDR but of taking range that's basically in the SDR domain and pumping it with thousands of nits of brightness. It "pops" but it kills the midrange when tone mapping because the TV thinks it's doing the right thing by preserving most of the mids and clipping the highlights - the trouble is that because the midrange has been artificially pushed into thousands of nits that the TV clips it, thinking it's highlights. I tell a lie, I did have one disc glitch on the 820...but this disc had a literal dent in it (it got bashed up in the post) and I thought I'd try it just to see how the player reacted. The OPPO froze up completely when it got to the trouble spot while the 820 chugged on it for a few seconds then resumed playing. Deffo better error correction on the 820. Last edited by Geoff D; 01-14-2021 at 10:52 AM. |
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#7009 | |
Blu-ray Knight
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I do have that High Clarity Audio on that switches off the display during playback. |
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#7010 |
Banned
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Big thanks for the explanation, Geoff. So it sounds like Aquaman is a bit of an oddity due to how the metadata was artificially bumped up, throwing the TV off. I was wondering why the TV was handling it so poorly.
I'm happy leaving optimizer on Medium and the sliders on default (0). Rtings claims my TV only hits around 500-550 nits max, but their reviews are not always gospel. The fact that with optimizer on "basic" even titles like 2001 are dialed back a bit too much tells me it's limiting the nits a bit too much for my TV at basic, leaving the image looking a bit flat and dull. So I'm wondering if my TV does a bit better than Rting's claim of 500-550. I don't think it hits close to 1000, but I'm guessing it might be a bit higher than Rtings claim. I could mess with the sliders in Basic I guess but it seems better to just leave it at medium in my case. It's a shame the 420 doesn't have the metadata info screen. It has the processor so why leave the info screen out I wonder? I'd appreciate being able to check that info screen. I'll be giving my player it's first full test this weekend with the Back to the Future series. Are there many titles out there like Aquaman that artificially bump the metadata up so high? |
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#7011 | |
Banned
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#7014 |
Power Member
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When you play a disc and the 'cannot play' message pops up you press stop and top menu button a few times to circumvent the lock. Someone please correct if I got this wrong. I have yet to try a region A disc on my 820. Doesn't work with all discs though.
By the way, I read the last Page on the HDR optimizer with interest. Good stuff. |
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#7015 | |
Blu-ray Knight
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#7016 | |
Blu-ray Count
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Thanks given by: | gotmule (01-15-2021) |
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#7017 | |
Blu-ray Grand Duke
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Thanks given by: | mar3o (01-15-2021) |
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#7018 | |
Blu-ray Emperor
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Nits aren't the same thing as what the tone mapping on the TV is showing you though, which is why it's not crapping out with well mastered 1000-nit stuff. There's a tangible lack of that sort of information on places like rtings, they just tell you the bald facts of what the brightness is and not how the actual tone mapping adjusts to whatever content it's been given. What I mean is that although the TV can't physically get brighter than that ~500 nit peak, its tone mapping is clearly handling 1000-nit stuff quite well by preserving most of that midrange and then compressing the highlights, so you still get a good hit of brightness without it clipping the range to buggery. In other words, if the TV was JUST clipping at the 500-nit mark then a lot of your discs would end up looking like Aquaman does. |
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#7019 | |
Banned
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#7020 |
Banned
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Tags |
panasonic, ub820, ub9000, value electronics |
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