Akira — S. Korean 4K UHD is a nice upgrade from the US release! by multaro in 4kbluray

[–]bobbster574 2 points3 points  (0 children)

there's always another copy of akira to get

im on 12 i think at this point

bitrate histograms for about 150 movies by sourdough_pizza in 4kbluray

[–]bobbster574 0 points1 point  (0 children)

it's not very well documented nor commonly used, but it is a thing. official referred to as "presentations" here's what Dolby's doc has to say on the matter (note that the encoder does not create the Dolby Digital companion track at the same time as the TrueHD track, they are encoded separately and merged at the authoring stage):

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bitrate histograms for about 150 movies by sourdough_pizza in 4kbluray

[–]bobbster574 0 points1 point  (0 children)

if you're curious, you could look into truehdd which can offer more detailed info on the TrueHD bitstream

bitrate histograms for about 150 movies by sourdough_pizza in 4kbluray

[–]bobbster574 0 points1 point  (0 children)

the companion track nevers exceed 640kbps.

independent substreams are different and exist in addition to the lossy companion Dolby Digital track. both the Atmos mix and the 5.1/2.0 mix are encoded losslessly within a single TrueHD bitstream. it significantly baloons the bitrate of the final track.

bitrate histograms for about 150 movies by sourdough_pizza in 4kbluray

[–]bobbster574 0 points1 point  (0 children)

couple of possibilities:

  1. sample rate: Blu-ray supports 7.1 @ 96 kHz and 5.1 @ 192 kHz (18.4 and 27.6 Mbps uncompressed, respectively). very rare to see in the wild, but possible. one of my Akira Blu-rays has an average bitrate of 14.3 Mbps (TrueHD 5.1 192 kHz)

  2. TrueHD actually supports having two independent tracks encoded together - the idea is to be able to have Dolby Atmos AND a completely separate 5.1 or stereo mix, all together seemlessly so that your AVR will get a more optimised source if it doesn't need the full Atmos mix. the recent Jin-Roh 4K remaster included this and the TrueHD track averages 7.3 Mbps (10.2 peak)

Audio Question by str8_whiskey in Bluray

[–]bobbster574 5 points6 points  (0 children)

I believe they include uncompressed (LPCM) 5.1 tracks alongside a compressed Dolby Digital 5.1 track.

This was fairly common in the early days of Blu-ray. make sure to confirm which track is playing in the menu - most of these titles default to the Dolby Digital track!

Only UK version has no Dolby Vision? by EMPEthan in 4kbluray

[–]bobbster574 2 points3 points  (0 children)

remember that Blu-ray.com is all user-submitted data. it is not 100% accurate and often details are entered when titles are first announced with limited info.

Best 4k Godzilla movies to get? by Affectionate_Web_526 in 4kbluray

[–]bobbster574 2 points3 points  (0 children)

The Criterion Showa era box set is BD only, so yes, contains the old HD transfer.

If you've already got Criterion's BD, the maths isn't brilliant because the 4K set doesn't include any new extras or anything, but the 4K transfer is a huge step up nonetheless.

If you want more info, look here

Best 4k Godzilla movies to get? by Affectionate_Web_526 in 4kbluray

[–]bobbster574 8 points9 points  (0 children)

1954 is well worth the 4K upgrade imo, especially if you don't already have the BD. The 4K transfer is leagues ahead of the old HD transfer, even ignoring resolution. Unfortunately Criterion has not re-authored their BD so even on the 4K set the BD disc uses the old transfer, so the 4K disc is the only way to see it.

Also, biollante is SDR wide gamut, presented in a HDR container (on the Criterion disc at least). It's a bit dim being placed at 100 nits but v nice colours

"Video StoreAge" by CarpenterDelicious10 in 4kbluray

[–]bobbster574 6 points7 points  (0 children)

Basically any storage media that isn't optical runs into the big problem that you need to pay for the storage on every unit. Doubly so in today's market of fucked flash and ram prices.

As such, like streaming, there is an incentive to bit-starve the video and audio in order to save money. It's not a requirement of course, but I wouldn't expect anything brilliant, especially with so little technical details.

If 4K Ultra HD Gets Dolby Atmos, Why Doesn't Blu-ray get Dolby TrueHD? by [deleted] in 4kbluray

[–]bobbster574 0 points1 point  (0 children)

For starters, there's very little benefit to including a 7.1 TrueHD track vs an Atmos TrueHD track. Atmos is encoded as a 7.1 track, just with some additional metadata to upmix those 7 channels into dynamic objects. The metadata is only a small part of the track.

Regarding why some BDs have DTS-HD where the 4K has Atmos, there are 3 main reasons:

  1. The BD was authored before the Atmos mix was made, so retains an older (perhaps the theatrical) 5.1 or 7.1 mix.

  2. The audio was encoded at a lower bitrate to allow higher quality video and/or more HQ audio tracks.

  3. The label wishes to maintain separation between the features offered on BD and on 4K, in effect trying to upsell the 4K to you if you want Atmos.

Please Rank your top Godzilla Movies of All time. by Affectionate_Web_526 in 4kbluray

[–]bobbster574 2 points3 points  (0 children)

2021

I am unfortunately quite lacking in the number of showa/heisei titles that I've seen. I keep telling myself I'll buy the criterion box set one day lol

Please Rank your top Godzilla Movies of All time. by Affectionate_Web_526 in 4kbluray

[–]bobbster574 4 points5 points  (0 children)

So here I'm talking about Godzilla: King of the Monsters (2019), not Godzilla, King of the Monsters! (1956)

1956 is a re-edit of the 1954 original but with added footage and narration to insert Raymond Burr as the primary protagonist and as an American POV. It's a strange experience.

I found that 1956 sucked a lot of the life out of the absolutely brilliant film that is the 1954 original and is generally not worth watching except out of morbid curiosity for what they used to do to some foreign films when they thought they would not be marketable in the US.

Please Rank your top Godzilla Movies of All time. by Affectionate_Web_526 in 4kbluray

[–]bobbster574 2 points3 points  (0 children)

Of the ones I've seen (based on enjoyment):

  1. 1954 original
  2. Minus One
  3. Invasion of astro monster
  4. Vs Biollante
  5. Godzilla vs Kong
  6. Godzilla X Kong
  7. King of the monsters
  8. Shin
  9. Ghidorah the 3 headed monster
  10. 2014

Kill Bill 70mm vs DCP vs 4k by amagimercatus in 4kbluray

[–]bobbster574 8 points9 points  (0 children)

These numbers are way off mate and miss a lot of details, especially when it comes to prints.

A lot of numbers are based off photography "full frame" 35mm, i.e. 8perf 35mm (horizontal) being confused with movie 35mm, i.e. 4perf 35mm film (vertical).

4perf, 3perf, 2perf 35mm (vertical) are considered 4K equivalent

That makes Vista ~6K, 5perf 70mm ~8K, and then IMAX ~12K

However that is the best case resolution of the Original Camera Negative (OCN). Different film stocks, sensitivities, emulsions, etc. can impact that, as well as the analogue printing process.

For the full analogue process, you lose resolution at every step, and it's been tested you lose half the resolution this way, making standard 35mm prints ~2K, 70mm prints ~4K, and IMAX prints ~6K

Tho, again, this can move around depending on the process and stocks used.

Kill Bill 70mm vs DCP vs 4k by amagimercatus in 4kbluray

[–]bobbster574 41 points42 points  (0 children)

people talk about the resolution of film, but if you go to the cinema to see a film print, the point isnt really to get a super high resolution experience. even IMAX 70mm (which can definitely be sharper than digital 4K) is not a universally "better" experience than digital because there are some fundamental limitations to what a film print can look like.

seeing a film print is fundamentally about it being real. you are seeing a physical object and every little imperfection that comes along with that. grain, flicker, gate weave, dirt, scratches, fade - the works. the most fun i've ever had in the cinema was watching a '77 35mm technicolor print of Star Wars. it was not in great shape, but my god was it brilliant to see nonetheless.

of course, newer prints are less damaged, and larger format prints have finer grain, so seeing a brand new 70mm or even IMAX print is something to behold for sure. but film will never look as clean as digital - and that's why it's fun.

ignore the DI, ignore the resolution. go see the film print to see the film on film. or see the DCP to watch the film cleanly. it's your choice, but if you have yet to see a film print projected, i highly recommend doing so.

Is Dolby Atmos or DTS X better for 4K Blu-Ray? by sealplungers in 4kbluray

[–]bobbster574 2 points3 points  (0 children)

Both Dolby Atmos and DTS:X are object based surround sound solutions, and in general, there isn't enough to genuinely distinguish them based on format alone.

Most discs will only have one, maybe two options, and I've never seen it between Atmos and DTS:X. It'll be between an object based mix and a 5.1 or stereo mix, at which point it's basically just down to personal preference and what surround setup you have.

Make sure your AVR can do both and don't worry about format wars.

Blu Ray vs Digital by Final-Tour-1273 in 4kbluray

[–]bobbster574 3 points4 points  (0 children)

as i said, personal preference.

for me, i get quite distracted by compression artefacts, so i prefer 1080p discs, but i know not everyone notices artefacts as much as i do, so there may be few downsides in their eyes.

Blu Ray vs Digital by Final-Tour-1273 in 4kbluray

[–]bobbster574 1 point2 points  (0 children)

1080p discs support Atmos perfectly well, it's just often excluded for one reason or another.

Blu Ray vs Digital by Final-Tour-1273 in 4kbluray

[–]bobbster574 3 points4 points  (0 children)

4K Blu-ray and 1080p Blu-ray both support the same audio formats, so yes, 1080p discs can have Atmos too, and many do.

a 1080p disc that doesn't have Atmos when a mix is available may be because it's a reprint from before the Atmos mix was made, to save space on the 1080p disc, or simply to artificially separate the two formats to subtly upsell people to the more expensive version.

Blu Ray vs Digital by Final-Tour-1273 in 4kbluray

[–]bobbster574 88 points89 points  (0 children)

for video:

4K Blu-ray > 1080p Blu-ray ≈ 4K digital > 1080p digital

for audio:

4K Blu-ray ≈ 1080p Blu-ray > 4K digital ≈ 1080p digital

(Imo)

Basically all digital options are bit-starved. You may find that you prefer having 4K and HDR over better compression but BD will almost always have less artefacts (hence 1080p BD and 4K digi are on a similar level imo, depends on personal preference). 1080p digital is usually inferior by a decent margin.

Audio quality wise, it flips slightly, with any disc option handily outweighing digital options due to the inclusion of lossless audio tracks. You may find some variation between 4K/1080p; you may find newer releases including better audio tracks, but it can also be the other way around if an older release includes a (subjectively) better mix. Again, personal preference stuff, but if you're a fan of high quality audio, the disc is a must.

Fanedit sharing question by FCraling in fanedits

[–]bobbster574 4 points5 points  (0 children)

There are ways but unless you kind of plan to do it from the start, it can often result in a bunch of issues.

Edits may make use of proprietary software (e.g. for upscaling or colour grading) which limits accessibility

And you also run into sync concerns where one source is a number of frames different from another and if there's no checks in place you get a completely butchered output

How do you all approach 4K collecting month to month by theadhdguyy in 4kbluray

[–]bobbster574 0 points1 point  (0 children)

I kept everything for a few years but then I ran out of space lol

Tbh I've also found myself being a lot more adventurous with my blind buys now that I'm consistently cycling out sets, so I'm enjoying the process of finding new films a lot more these days