We’ve all listened to digital music, right? And that means you’ve probably heard of “bitrate” or come across files that have “kbps” at the end. Thing is… what does that mean? What the hell is bitrate?

Do audio bit rates matter? With iTunes enhanced-bitrate music coming in a month, we were hoping for a vast improvement. But can anyone tell the difference between a music track encoded at 320kbit/sec, ...