Willard Waterman

For the most part, the mono track available on the BD and UHD is fine, but there's an 8 minutes long segment which sounds terrible with artificially expanded frequency range causing very audible artifacting. The 5.1 remix doesn't have that issue. Sample

Arrow 4K Blu-ray > Kino Lorber > Capelight Germany

(transfer of the 1989 MGM LaserDisc, without problems plaguing Kino Lorber's release)

Arrow UHD is an update of the original 4K scan done for their BD. It is also visually far superior to the Kino version and adds Dolby Vision HDR. The Arrow UHD uses a new LD mono capture and has none of the issues or processing found in the Kino UHD which also used an LD mono capture and somehow mucked it up. Short of a brand new scan, the Arrow UHD is as good as it possibly can be.