Size of hard drive and Mp3 tags functions

[John Hicken]

I'm creating a Python program to pick a random set of mp3s, to copy to
my mp3 player, so I can regularly get a new set to listen to.

Anyway, there are two sorts of functions that could be useful.
1) A function that gives the size of a hard drive (or other drive, in
this case the mp3 player itself), and/or the space remaining.
2)A function/functions to read the ID tags of an MP3 file.

Doesn't anyone here know if functions like that exist for Python?
Ideally these would be built-in functions, or in the modules that come
with Python.  This is for Windows by the way. 

John Hicken