4K Blu-ray

Twilight Time Blu-ray or MGM NTSC DVD for the original mono mix

• Shout! Factory 4K only has a stereo downmix (which sounds muffled, as do the surround tracks)

• Twilight Time Blu-ray has the mono track with seemingly the best fidelity, but its dynamic range has been heavily compressed

• MoC UK Blu-ray has a proper dynamics and good fidelity, but bizzarely, everything is repeated after a few miliseconds, rendering echoey and metallic

• MGM NTSC DVD has been denoised and has had a strong EQ applied and sounds muffled as a result, but it retains proper dynamics

• Koch Media DE BD had poor dynamics and wrong pitch

• Analog 1986 US LaserDisc sounds poor
  

Perhaps the digital JP LD would be better.

Nicolas review

The 70mm 6-track mix has a higher bitrate on the Paramount 1998 DVD, but is more limited than on the THX LaserDisc The Paramount 1998 DVD also has open matte versions in fullscreen 1.33:1 and widescreen 2.00:1 instead of the theatrical aspect ratio of 2.39:1, but the 2.00:1 widescreen presentation is non-anamorphic. The THX LaserDisc is available in both fullscreen 1.33:1 and widescreen 2.00:1 variants.

The 2.0 and 4.0 mixes are said to be particularly strong against the muted / dull 5.1

UK Arrow 4K Blu-ray see AVForum review

The slight darkening of the colour palette with the new WCG/HDR grades suddenly seems to add another layer of detail and immersion into the picture. Now, those dark night times punctured solely by neon or those dreary overcast half-light early mornings or dusks feel more alive with authenticity. Skin tones are gorgeous, the subtlety in colour detail of Hoskins’ atrocious leather jacket/Hawaiian shirt combo is sublime and those all-important blacks go deep. But it’s the now huge variations in colours that stand out – the reds of the Peep Show as Genesis’ classic In Too Deep plays now have a much richer, darker saturation to them than the previous 1080p SDR grade, helping them stand out so much more than those more neutral, toned down colours of the Brighton seaside against the morning skies. It’s a gorgeous colour reproduction from top to bottom.

Detailing is also tightened up significantly – again, the 2K picture was good, but this improves on that with keener lines, sharper edges and a greater sense of delineation in those finest of fine details that add an extra little touch of depth to the picture. Add to this another beautiful grain presentation – with organic looks and movement throughout - and it’s an image where its edges match the brilliance of its colouring.

... and the encode – courtesy of Fidelity in Motion – is absolutely rock solid. Hope were not high for this over the very good 2K edition, but I am very pleased to say that those hopes were well and truly exceeded: Mona Lisa on 4K looks absolutely stellar

Shout! Factory doesn't have the low-pass filter that's on the Sony US 4K Blu-ray from 2021 with Dolby Vision (or the worse HDR10 only release from 2016). Shout! Factory retains more high-frequency grain and detail.

> Disk Kino/WCL China import

review: Disk Kino

Both have better encoding than Disk Kino, some shots are better on Shout! Factory, others on Arrow

Shout Factory still has the best video while Arrow did a questionable regrade. Arrow definitely has less grain in most shots, has a worse encode and is cm v2.9 compared to Shout’s cm v4.0.

Shout! Factory/Arrow 4K Blu-ray has the original mono

> Sony 2019 Standard Edition 4K Blu-ray

US Sony 2023 Steelbook 4K Blu-ray added Dolby Vision and more extras

DVD and Blu-ray both have lossy Mono

The DVD has an isolated score track 
In addition to the new Atmos track, both 4K Blu-ray releases have ported over the previous lossless 5.1 remix from the older 1080p Blu-ray in DTS-HD MA 5.1 and also include the original theatrical mono mix in lossless DTS-HD MA 2.0 Mono

Only the US Steelbook has Dolby Vision

Caps by asacmurr. Comparison between the Arrow, Vinegar Syndrome and Turbine releases with Arrow (Engine House) being the best encoding-wise. Vinegar Syndrome 4K Blu-ray has mediocre encode and over-saturated skin tones. Also, the Arrow 4K Blu-ray has reported issues with Panasonic players.

There is a newer 4K restoration by L’Immagine Ritrovata, which should be of better scan quality. The 4K restoration used on all current 4K disc releases stems from a low-quality Cintel scanner. The newer restoration has yet to be released on home video.

Subtle difference in encoding to the Criterion in encoding, trading blows in different shots, with Plaion taking a slight edge with less highlight blocking

Criterion's 2.0 sounds muffled due to noise reduction and EQ.
Plaion's 2.0 lacks bass and has a very bright EQ, more resembling the 5.1 remix. Plaion’s 2.0 doesn't have any filtering unlike the Criterion, see https://forum.blu-ray.com/showpost.php?p=23831289&postcount=110