P3D RE: P3D Multi-track mini disks

[Gabriel Jacob <gjacob@xxxxxxxxxxx>]

Jim Harp writes, 

>Mini disk is a great format for live presentations - IMHO one of the most
>robust data storage formats ever created.

How does it stack up to the MP3 players/recorder? I would lean toward
this because then it might be possible to use the memory cards in a
mp3 player/recorder or a digital camera! I'm still confused about the
different types of memory cards being used in those devises and if
they can actualy be interchanged (heard from one source that if you
format the memory card for one device you can't later reformat it for
another device, which I find hard to believe) because I've gotten so 
many different answers. I'm sorely tempted to ask them, "Is that your
final answer!?!"

Gabriel