Newbie question on tagging a multidisc album

[paultaylor]

One thing I don't get is if MinimServer reads the DISCNUMBER field why is it necessary for there to be a value in the DISCSUBTITLE field to display as separate discs since if DISCNUMBER = 2 then you can derive Disc 2 and so on. Or is the idea that the DISCSUBTITLE field is the trigger to make MinimServer group tracks by discs, so that if you don't want it to do this you just leave DISCSUBTITLE blank.