James Millican

The mono on the Criterion is severely filtered resulting in it sounding incredibly muffled. It is nearly as filtered as the 2003 original Universal DVD which had extreme filtering and sounds horribly thin. The 2008 DVD remaster and original Laserdisc analog mastering are mostly left alone. The original LD master is from a worn element but otherwise sounds very natural. The 2008 DVD is the highest quality version we have without the heavy filtering and the defects of the LD master. It isn't perfect but easily the best of the main four sources by a dramatic margin. 

The existing 4K SDR restoration looks excellent, but the Criterion extras are limited and disappointing. The classic Stewart interview commentary from the LD is ported over but given a new mastering. Compared to past releases it has been very slightly noise reduced.

For physical release, Criterion and Sony Blu-ray are very similar

Criterion 4K Blu-ray (not by much, caps)

From cbc:

I much prefer the 4K Blu-ray track. LaserDisc has several nasty constant hums, and even after you remove that, the detail level is on-par with the 4K Blu-ray and has a lot of crackling. The 4K Blu-ray has some variable noise reduction, but it's done well and non-intrusive IMO, I watched it with that track and was happy.

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.