[jQuery] Jquery Sound

Hello,
I've been trying to get the following working :
http://dev.jquery.com/view/trunk/plugins/sound/
However, it only plays about a second to three seconds of the
designated sound before shutting off (in FF and Safari) but loads
fully in Opera. The music is hosted locally at the moment.
Any ideas?
The test code I'm using is as follows :
$.sound.play('Sounds/Music/OE1.mp3');
TIA,
Paul