What if Sound URLRequest fails?


I was wondering if there’s a method to determine whether an audio file is accessible before trying to import it into the movie?

I’d like to use something like this, just in case the the .mp3 is not in the correct directory to begin with.

I’m using the following to import my audio file:

var sound:Sound=new Sound(new URLRequest("music/busylittlemarkettown.mp3"));
var songChannel:SoundChannel;

Any ideas? Thanks