Italy

Japan Blu-ray new 2K resto of 6K scan https://forum.blu-ray.com/showthread.php?t=334691  Screencaps look great https://www.mondo-digital.com/ladyoscar.html 

Italy also has a recent Blu-ray release

In the Lionsgate US/UK 6-disc set, there are 4 discs of the main feature. For whatever reason, the 4K discs lack the *original track. The Germany 4K Blu-ray release is different on this matter.

1. UBD: Final Cut: Atmos, DD2.0

2. UBD: Redux/Theatrical: Atmos

3. BD: Final Cut: Atmos, DD2.0

4. BD: Redux/Theatrical: Dtru5.1 (Redux mix?), DD5.1 (?), DD5.1 (Theatrical only), DD2.0 (downmix??)

   1. As a result the Theatrical Cut has 4 tracks, The Redux has 3. Differences are unclear.

5. BD: Hearts of Darkness

6. BD: Special Features

Italy Eagle Pictures 4K Blu-ray > Shout! Factory 4K Blu-ray > StudioCanal 4K Blu-ray (Shout! Factory has Dolby Vision while Eagle Pictures doesn't)

2.0: Shout! Factory > StudioCanal. Italy Eagle Pictures doesn't have it.

Better compression than other 4K Blu-rays

Spain/Italy 4K Blu-ray > US 4K Blu-ray

Eagle Pictures Italy > StudioCanal UK, better compression than StudioCanal

Italy Eagle Pictures 4K Blu-ray >StudioCanal UK (slightly better encoding on Eagle?)

Japan 4K Restoration Blu-ray has original 4.0

The US Criterion DVD has some unique supplements with 2.0 surround audio - this release contains Japan end titles.

The Japan 4K Restoration Blu-ray has some exclusive features with 4.0 audio (though the release is not English-friendly)- this release contains Japan end titles.

The StudioCanal releases contain France end titles - while their 4K Blu-ray releases contain identical features.

France steelbook is prone to rot and 2014 Italy disc is 1080i

Italy Koch Media Blu-ray is not stretched compared to US Shout! Factory and UK Arrow Blu-rays

As for the color grade, unsure whether the Italy or US/UK Blu-ray is more accurate to the theatrical colors.

Arrow Blu-ray has lossless original stereo

Shout! Factory Blu-ray has the most extras with a lossless isolated score

UK release is cut.

Italy Eagle Pictures 4K Blu-ray > Lionsgate/StudioCanal 4K Blu-ray (Lionsgate/StudioCanal has Dolby Vision while Eagle Pictures doesn't)

Eagle Pictures Italy > StudioCanal UK, better compression than StudioCanal but no forced subs on non-English dialogue

Eagle Pictures Italy > StudioCanal UK, better compression than StudioCanal

Japan 4K Blu-ray beats the other 4Ks and includes English subtitles

All 4K releases are upscales of the same master with a substantial amount of DNR.

Due to budgetary constraints, the original theatrical mix was mono. It was replaced with Dolby Surround for all subsequent releases and was never re-released.

LaserDisc is the best souning version of the original home video mix, as all later releases attentuate bass significantly and lower dynamic range. Comparison

The Japanese audio was remixed in 5.1 twice, first time in 2001 for the DVD release, and second time in 2009 for the BD release ("Hypersonic" remix). While the 2001 remix remains mostly faithful to the 1988 mix, the 2009 Hypersonic remix is highly revisionistic. However, its fidelity is outstanding, and despite many changes made, it's a worthwhile alternative experience for fans of the film. The 4K release includes the Hypersonic mix, but with a tonne of unnecessary noise reduction and unbalanced levels.

Comparison between mixes, list of changes between mixes

Eagle Pictures Italy 4K Blu-ray > StudioCanal 4K Blu-ray: better compression than StudioCanal

Italy Eagle Pictures 4K Blu-ray has better compression than StudioCanal 4K Blu-ray, green-ish SC master that restores some blown-out highlights compared to the Sony master, but bad HDR10 compression (details). The 2023 Sony 4K Blu-ray steelbook has different grading and Dolby Vision that some may prefer, good encoding, but heavy DNR for about 15% of the runtime.

Pick your poison between Eagle Pictures or Sony.

Paramount/Plaion Italy 4K Blu-ray > Paramount US. Overall good, superior compression to the US disc