I wanted this as I am a long time artist and wanted to produce new music with Logic Express. After installation, I listened to many of the instruments and loops. In my opinion, if you are a total professional and are scoring for the major movies that get made and released, you probably want to spend the $1000's of dollars for the totally professional products out there. If you're not that particular person, which how many people like that are out there really, the Apple Jam packs are the best. You get the best value and sounds for the genre that you can get. I can't emphasize enough what it's like to listen to world music sounds from different parts of the world, that you can use in your own music, that are totally excellent and usable. Cuban instruments are an example, as well as the African ones. You can't get more authentic. Consider how much it would cost to bring these musicians or producers together to produce these sounds for you. And they ain't no tweenky sounds tweaked from a synthesizer that sort of reminds you of the real thing, or a midi file joke. It's the real stuff. Thanks again to Steve Jobs and Apple.