I am going to be making a movie and am considering using minidisc for the audio. My one concern is the movement sensitivity while recording. What is everyones experience with this? Am I going to have to keep it absolutely still, or is it possible to walk with the minidisc recorder without problems? I have also looked at harddrive mp3 recorders, but they are a little more expensive and from what I have read the quality probably isnt going to be as good as a minidisc recorder. Also, any recommendations? While Hi-MD would be a plus it is not necessary.