US

Both DVD and BD use the same transfer. Blu-ray is more cleaned up (hiss, clicks, pops) but loses detail in quiet moments due to noise gating and sounds less natural throughout.

US VCI Blu-ray or UK Second Run Blu-ray share the same 4K restoration transfer and look essentially the same see caps

1.85:1: Kino Lorber 4K  / Capelight 4K

1.66:1: Criterion 4K but low pass filtered

Comparison between the 4Ks, Criterion on the AR choice

Other discs have unnecessary filtering and sound worse, the difference isn't substantial but audible

> UK MoC 4K Blu-ray > Australia Imprint > US Kino Lorber better encoding

The MoC, Criterion and Imprint UHDs were encoded by FiM making all 3 very close. The higher bitrate helped in deciding and some luck; however Criterion is the most consistent one of all 3. Imprint has some scenes with more splotchy grain while MoC is quite close to Criterion but has some more blocking in dark scenes (e.g.: comp #27). With Criterion’s superior audio, it ensures complete consistency.

From cbc: "I'm personally quite fond of the restored track on Eureka's 4K Blu-ray. It does have spots with objectively worse fidelity, but for the most part, it sounds a lot more natural and less shrill, particularly dialogue. It seems to be a new mixdown of stems. Technically a remix, so not everyone's cup of tea, but it's not revisionist like most new movie mixes tend to be"

Both Imprint (included in their set) and Capelight (on its own/individually) offer remastered BDs. All other BDs, including the one included in The Complete Kubrick, are sourced from the same older master from around 2010.

UK Arrow has the best encoding, but only US Shout! Factory has the fixed Quicktime Gamma Bug.

Both Germany and UK Arrow suffered from the bug, see caps comparing 0.88 gamma fix

US Twilight Time Blu-ray or UK Signal One Blu-ray are basically the same see cap

> UK Paramount Blu-ray or US Inspired Blu-ray

The UK Blu-ray not only have some DNR applied, it's also squeezed and cropped: see comparison

The color contrast from Twilight Time is however possibly suffering the Quicktime Gamma Bug, but that's an easier issue to fix than DNR or cropped images.

OOP US Monterey Video Blu-ray or OOP UK Second Sight Blu-ray share the same restoration, but no comparison available

HD Streaming is available otherwise