I figure i'll make a comment since i'm against embedding sounds on sites...
It's wise to keep in mind that most modern browsers now adays allow tabbed browsing, and lots of users (myself included) go and load multiple tabs; so if sounds loop you'll have one hell of a mess when visiting sites that would sometimes just end with people disabling sounds on their computer when visiting your site.
Ofcoarse this is generally most annoying on flash files that loop sounds
