Let's see I've noticed it on
Batman'89 (both early 2000's double sided DVD and the Special Edition DVD - haven't tested the Blu-ray, but it probably has the same sound)
Babylon 5/Crusade (any episode)
Dick Tracy (1990 film)
Home Alone 3
The Love Bug
It's because the players don't mix the multi-tracks down correctly, and each single multi-track channel is a mono channel, so the balance's are way off.