Shoutbox

I've made a web site for my music I make. On my site people can listen to my songs. But the thing I don't want them to do is download the songs. How could I block some one from downloading my music off my site.

So far I got a no right click on the site so they can't click save target as, but if they view the source or some how get the link to the song they can easly downbload it.

Is there any way to stop any downloads on the server or can I block them from being downloaded?