The newest version of Napster for the peeps involves a little something the site is calling "acoustic fingerprinting." Basically, it's a new strategy that allows the company to scan users' song files at random, picking up digital "fingerprints" of them, and then uploading them to the Napster servers. This will ultimately create a database that the site can use to build effective song filters that look for these "fingerprints" instead of song names to identify copyrighted material, and will better catch users trying to thwart the system by using alternate spellings, encryption, and the most dastardly method of all, pig latin.
This new fingerprinting feature will be included in the latest version of the program which you can download at the Napster website. This comes out of a recent partnering between Napster and tech company Relatable, which has reportedly already compiled a great deal of these "fingerprints."