I'd like to add my vote here. I just upgraded MM3 Gold to MM4 and am enjoying it, but I wish I could add some columns with encoder info. Particularly, these fields, which appear when I right-click a track and look at Audio Properties:
Encoder LAME 3.97
Encoder Settings VBR -V 0 (Extreme)
In case it's relevant, I use dBpoweramp to rip.