There is also the possibility that the unnamed individual on that other site is waiting for the BD of KIKI. Which is now on pre-orders for region A japan if not a North American release.

Keeping me eyes open on that site to see if something happens.

Remember the track is mono in one of the split stereo channels in analog. It is not full bitrate pcm or even lower bitrate ac3 or even in stereo.

Now that i think of it since the redone KIKI's script is remarkably similar to the earlier effort minus the 80's references and the much funnier Jiji by Phil Hartman. The Japanese Company was happy with that DUB originally it is entirely possible that the older dub either is sonically limited being dual mono, or that the actual source master was lost or they just wanted a more modern one.

The American Release on Laserdisc was on offer in AC3 sound for the Newer dub.