Rudy Germane

Capelight 4K Blu-ray > Kino Lorber 4K Blu-ray see caps

WB Europe 4K Blu-ray slightly better encoding than Criterion (caveat: missing Criterion extras)

UK MoC Blu-ray uses the same restoration as Criterion but has more natural contrast and more organic grains see caps

MoC Blu-ray has the exactly same audio as Criterion Blu-ray

Both tracks on the Kino Lorber 4K Blu-ray are badly remixed.

4K restoration from Original Camera Negative

Paramount 4K Blu-ray. See caps
HDR/grading: nice, but some blown out
Encoding: inconsistent, smeared motion
DNR: inconsistent, frozen
Old Paramount Blu-ray is arguably a solid alternative choice

Paramount 4K Blu-ray mono is different version of the Blu-ray mono from the same old 2000 DVD transfer.

The 5.1 remix on the 4K Blu-ray is an appalling remix done by going wild with artificially generated stems from Park Road Post who were given the surviving mono to separate. The experience is jarring and fidelity to original mix in terms of level balance, directionality and impact is nonexistent. Not only does this sound painfully weird, but the Paramount mixers then did whatever they wanted in terms of LFE, sound pans and effect changes.
The original mono mix was not restored and still needs it badly. The 4K master is filled with frozen grain examples coming and going plus some HDR issues in addition to the usual Paramount problems. It is simultaneously better and worse than the Blu-ray master.

Criterion 4K Blu-ray; caps

The 4K discs in both Criterion and Imprint sets are FiM encodes, but low-passed. The compression is better, but some of the grain is lost. Difference is pronounced in screen caps, but not likely to be noticed during playback, without a reference to compare it to. Comparisons

All discs use the same source transfer. It's not of the highest quality, and it includes some slight distortion, looping, clicks, pops, and hum. Criterion cleaned it up for their release, but unfortunately also lost a lot of fidelity in the process.

MGM NTSC DVD doesn't seem to have some of the more prominent distortion and has slightly different EQ but is otherwise the same.

The Criterion Complete Kubrick and Imprint 1953-1957 sets include remastered BDs. All standalone releases are from an earlier master.
Arrow UK Blu-ray has an exclusive isolated score & effects track. Kino Lorber and Imprint have an exclusive commentary each.

Both Kino Lorber and Germany Filmjuwelen 4K Blu-ray have poor encode. See nicolas review on Eureka Blu-ray. It seems the 4K restoration on that disc and the Olive Films Signature US release served as the basis for the HDR master Kino Lorber commissioned. There are the same traces of grain management in the opticals and the small number of shots from a lower quality source that were spliced in between the Original Camera Negative footage. The SDR grayscale looks great though and after having compared everything, I would’ve preferred a 4K SDR release. The Eureka Blu-ray release wasn’t encoded by FiM and it shows. For those with the Blu-ray and an appreciation for optimal encoding, consider an upgrade.

Kino Lorber 4K Blu-ray: It seems that Kino Lorber commissioned the HDR/DV grade and some additional cosmetic work on the master. They used to mention "… brand new master by studio X" on their back covers when they were supplied with ready-made materials. This isn’t the case here but maybe someone’s in the know and things are different. The HDR grade is darker than the SDR one and flattened the grayscale quite significantly. I mentioned this in the Sabrina and Sunset Boulevard thread as well but I’m not really a fan of these grades and doubt that they’re enhancing the grayscales to make them appear more film-like. I’ve seen worse and it’s not the end of the world when the film is viewed in a dark environment but don’t expect anything as luminous and sparkly as The Big Heat. Kino Lorber’s encoding can be seen here via ko8ebryant’s caps.

Eureka 4K Blu-ray (BD-100): Same 4K master and same HDR grade as on the Kino Lorber 4K but now expertly encoded. Thanks to no compression anomalies standing in the way, we can now scrutinize the master much better. In comparison with the SDR master, I noticed that there are opticals that got hit with further noise reduction and sometimes egregiously so, such as in the scene with Grace Kelly at the train station at roughly 18 minutes into the film. Parts of that scene were sourced from a lower-quality source. In the HDR master, grain was practically erased altogether whereas in the 4K SDR master on the Eureka Blu-ray, grain is visible in the same shot despite the iffy encoding.

I’d still recommend the Eureka 4K Blu-ray as the Original Camera Negative shots and scenes are frequently gorgeous, beautifully detailed and at most only minimally tampered with. The imperfect HDR grade bugs me but I’ll still use Eureka’s 4K Blu-ray for my future viewings due to the FiM encode.

Eureka 4K UHD image is frequently stunning and far better than the Kino UHD using the same master. (no surprise) However there is frozen grain throughout baked into the Paramount master, some shots are soft due to management (some are inherently soft) and the HDR is questionable in areas. In some areas the old Eureka BD using the same scan in SDR is preferable. As usual, the issues are Paramount's doing and the only way to escape them would be starting from scratch.

Kino and Eureka UHDs have a mix of new and legacy extras. To have every supplement you will need both UHDs and the original Criterion Laserdisc for the exclusive commentary.