automated music conversion (ffmpeg): wma to mp3

Automatically convert music from *.wma to *.mp3 using FFMPEG program.

% simple script to use ffmpeg to convert wma files to mp3
%
% wanted to be able to play my music on iPod, so I wrote this to convert my files
%
% based on WinFF program, which is a frontend for FFMPEG
% WinFF: http://biggmatt.com/winff/
% FFMPEG: http://ffmpeg.mplayerhq.hu/
%
% Written for an installation of WinFF. I haven't tried just installing ffmpeg.
% WinFF installs ffmpeg into it's directory.
%
% Use:
% put this script in main music directory (i.e. ...\My Music\)
% then run and it will look through all subdirs and convert any wma files to mp3
% deletes wma file after conversion
%
% defaults:
% convert to: mp3
% bitrate = 160k'
% numchannels = 2
% sample rate = 44100
%
%
% I know this is probably lame and written horribly, but it works and didn't take me any time.
% Kind of embarrassed to post it, but maybe it'll be useful to someone...