Tony Burton

Original Knockout Collection release had its 5.1 mix pitched too low, replacement disc and Ultimate Knockout Collection fixed the error. 

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

All foreign language tracks were pitched too low, replacement disc and Ultimate Knockout Collection disc fixed the error. 

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

2024 Ultimate Knockout Collection Warner Bros 4K Blu-ray Box Set > 2023 Knockout Collection 4K Blu-ray

2023 disc has a brief moment where the aspect ratio changes from 1.85:1 to 1.78:1, 2024 release fixed the error

Both cuts of the movie are on the same disc and don’t appear to be seamlessly branched. 

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

Included in the Complete Kubrick box set with FiM encode of the same master from the WB release without the filtering, 1.85 ratio restored for US Cut; both US and International Cuts are 4K.

No Blu-ray or DVD release until the Criterion 4K Blu-ray has presented the US in its original theatrical aspect ratio of 1.85:1. The International Cut has never been presented in it's OAR of 1.66:1 in any home video releases.

The packaging on the back of the WB 4K Blu-ray incorrectly states it as 1.85:1 when the movie is actually 1.78:1 as is the original Blu-ray. 

Original Mono: Ultimate Knockout Collection/Knockout Collection replacement disc > 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.