We all know the modern complaint: movie sound sucks now unless you have a high-end sound system. Frantically turning down the volume after turning it up to hear the dialogue only to need to turn it up again can be frustrating. Now, this doesn’t solve the underlying problem, but why not have a “Volume A” and “Volume B” you can easily set and toggle between with the simple press of a button?
Here is my preferred solution that will never happen:
Divide all media audio into separate tracks for dialogue, music, sfx, etc., and let the users control the volume of each separately. To avoid having an easily ripped pure music track, perhaps premix the other tracks in at 10% or so (in a logarithmic scale) and make that the minimum volume of any track other than music.