Who's better, Sammy Hagar or The Great Caruso? We know you have every track the Red Rocker ever laid down, but if you haven't upgraded your gramophones of the great Italian tenor, today is the first day of the rest of your life. The Library of Congress, working with Sony, now streams a collection of 10,000 historical recordings, including Caruso and other pre-1925 greats. This "National Jukebox" is a bit of a hodge-podge, including everything from early jazz to poetry to yodeling, but digging through the archive is half the fun. But while access to this material is great for sound preservationists, commenters on BoingBoing point out that it's not truly public domain work: thanks to our spaghetti-tangle of copyright arcana, Sony still owns the rights. It's allowing users to stream but not download, and technically could revoke its gratis license at any time. So get your Caruso fix while you can.