One of the cool things about iTunes is how it displays the time, in days, that your music library will play without repeating. I've got a fairly big library on my main machine, about 20 days worth. That's a pretty long party.

But it's nothing compared to this guy who, with 802 days worth, can measure his music marathon in years, a little over two to be precise. That library belongs to Will Friedwald, a jazz writer, who with over 172,000 songs, claims to have the biggest iTunes collection in the world.