Capelight

> Knockout collection original.

The Mono mix on the initial release of the Knockout Collection is a stereo fold-down of the 5.1, it also has a missing piano cue. The replacement disc and the ultimate knockout version fixed the error. 

The Steelbook and UK standard edition is the same disc as the 2023 knockout collection.

> Paramount US, same black crush as the US disc but encoded by FiM and very good new supplements

Paramount US 4K Blu-ray has FEL Dolby Vision 

Arrow UK 4K Blu-ray has MEL Dolby Vision

Imprint Australia 4K Blu-ray has slightly better compression than Criterion 4K Blu-ray.

The master in DV looks all but identical to the Criterion’s HDR grade. Detail-wise, FiM’s encode looks like it uncovered a tiny bit of extra high-frequency information that got filtered on the Criterion. See nicolas review

1990 Criterion LaserDisc/1993 MGM LaserDisc/2002 R2 MGM DVD are the best. See blah-ray https://blah-ray.blogspot.com/2018/01/raging-bull-1980.html

Imprint Australia 4K Blu-ray has better audio than Criterion 4K Blu-ray, from nicolas:

I believe that what’s on Imprint’s 4K is one of the good mixes MGM and Criterion released during the LaserDisc days. Music is powerful and detailed, dialogues have excellent fidelity and ambient sounds have perceptible depth. I compared the "new" 2.0 with the anemic 5.1 as well as the Criterion 4K mix and could clearly hear the improvements.