1.	Here's an example of a RSS file that delivers a different Grateful Dead song to subscribers every day.
2.	http://www.ourfavoritesongs.com/users/dave@userland.com/rss/gratefulDead.xml
3.	Each <item> contains an <enclosure> as explained above.
4.	<enclosure url="http://www.scripting.com/mp3s/touchOfGrey.mp3" length="5588242" type="audio/mpeg"/>
5.	I've configured my system to download enclosures between 1AM and 4AM, a time when I don't use my computer.
6.	When I arrive at work, I check the incoming Log and see there's a new song.
7.	I click. It plays.
8.	No wait.