Wong Wai-Fai

Arrow has a different grade and a better encode than the Shout! Factory, though the difference in either is not major. Imprint release, which leaves Shout! Factory's master and subtitles as is, is encoded by FiM. https://forum.blu-ray.com/showpost.php?p=24473097&postcount=56

Original mix: Shout! Factory 4K Blu-ray (similar to Criterion LaserDisc, but less distorted)

Alternate mix: Scanbox Nordic PAL DVD

Surround remix: HK Video France 4K Blu-ray (5.0)

Arrow used the alternate mix, but with extra filtering and lowered dynamic range. The alternate mix has much better fidelity.

Imprint presumably used the Shout! Factory original mix and left it as is, though no official confirmation.

Arrow has a much better translation.

Arrow LE has the Taiwan Extended Cut which will not be present on the standard edition. However, Imprint is FiM and has its own archival extras not present on the Arrow.

Different color gradings, 88 Films disc is encoded by FiM but Vinegar Syndrome encode (by Marcus Johnson) is more than robust

Vinegar Syndrome potentially has better audio than 88 Films, due to VinSyn possibly having EQ'd the audio mix after Fortune Star scanned the track in a way that makes it sound too hot, whereas 88 left it alone without addressing that issue. However, no direct comparisons exist

UK Arrow 4K Blu-ray > US Shout! Factory, better encoding by Engine House and redone opening credits, errors present in Shout! Factory fixed

Mono is from an alternate higher fidelity source than Shout! Factory.