Making his return to the stage of a live event for Apple for the first time in a year, Apple CEO Steve Jobs unveiled iTunes 9, the latest version of Apple's music and video jukebox software, available for download for Mac OS X and Windows today.

Genius Mixes

Genius Mixes were the first major feature Jobs announced. With more than 27 million libraries built from more than 54 billion songs submitted and analyzed, the software is now ready to create Genius Mixes, which Jobs likened to having a personal DJ at a radio station catering just to your taste.

Genius Mixes goes beyond music, however. Movies can also be categorized using the new technology, and the same goes to apps installed on the iPod or iPod touch.

More: http://www.macworld.com/article/142703/