Frustrating, isn't it? Pity it's coming from a label (Anchor Bay) that we simply can't trust, audio-wise (they have a history of downmixing their stereo-ised tracks to mono and calling it 'original', presumably to save the time of going back and re-syncing). Even if it is accurate it's only ever been presented in 192 kB/s DD.
The best course of action would probably be a rip and sync of the Criterion laserdisc's digital mono, but I can't see any of those for sale right now. Anyone got a copy?