keep in mind that not all bitrates are the same and comparable. i cant remember off the top of my head but just google it. what itunes sells seems lower because of the number but it is compressed differently so sounds better than ripping a cd at that same rate. if buying from beatport and juno i just buy mp3s i remember being told before even when playing in the club a lot of PA systems are made for loudness so as long as you arent playing some badly converted 128 mps ripped using 1990s tech, then anything better than that sounds just fine. but on the other hand i assume for perso listening you are not using crappy apple headphones, or even for your car, then it is nice to have higher quality music