"Pull out a vinyl record from the 70s or early 80s, and listen to it. Odds are it'll have a big dynamic range -- it'll be whisper-quiet in some parts and booming loud in others. You'll pick up new nuances every time you listen to it. Now listen to any music track recorded in the last ten years, and it'll be radically different. That dynamic range is gone: The entire track is loud, all the way through. The sound sounds a lot more intense, and it 'grabs' you more quickly the first time you hear it. But does it still reward re-listening?"