The main problems seem to be (a) the built-in microphone and no external mic input, (b) the lack of a microphone gain control (resulting in distortion from the PA at gigs), and (c) the lo-fi 11025Hz sample rate for the audio.
still, one could call it a sort of DIY indie grunge aesthetic or something.
Ohhh yeah! Apparently Canon cameras AVI encoding is a bit sub-optimal.