Theatrical: Italy Eagle Pictures 4K Blu-rayRedux: Lionsgate vs Eagle Pictures?Final: Lionsgate or Eagle Pictures

Theatrical Cut: Italy Eagle Pictures 4K Blu-ray > US Lionsgate 4K Blu-rayRedux Cut: Lionsgate vs Eagle Pictures?Final Cut: Lionsgate or Eagle Pictures, both are not great (visible chroma noise)

Theatrical: Germany 4K Blu-ray/US Blu-ray DD 5.1 (1979 mix)

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.

UBD: Final Cut: Atmos, DD2.0

UBD: Redux/Theatrical: Atmos

BD: Final Cut: Atmos, DD2.0

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

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

BD: Hearts of Darkness

BD: Special Features