Sound object :: need some help

i am trying to build a “jukebox” and have been trying out the sound object.
I am able to load a sound but can’t get any of the other functionality to work…

for example…
want to have the total bytes read into a dynamic text field (as a first step in the process)

I have a 1 frame movie with 2 layers.
Action layer has:
mySound = new Sound();
mySound.loadSound (“”, true);
toLoad = this.mySound.getBytesTotal();

text layer has a dynamic text box called toLoad
nothing is being read into it though.
The sound is playing.

Can anyone point me in the right direction?

Thank you in advance,