Lack of quality maybe? I have a sennheiser HD650 headphone with a headphone amplifier and tbh half of the mp3's online are crap. Each time I've downloaded a song I have to run it in an audio program and fix all the static and distortion. Oh btw ogg > mp3
http://www.youtube.com/watch?v=KEFTCyYIQp4 haha slow motion, sounds like the devil!!!!!!! EDIT* and for sh*ts n giggles, http://www.youtube.com/watch?v=LbvP7dT3Dx0 so funny, its so similar to MJ's version...yet...indian!!
what the hell does that mean... Anyways I just ment that (I was a bit drunk @ the time when I posted it) with higher end audio gear you'll be able to have great music but on the other hand you'll be able to hear more flaws, such as the ones 75% of all mp3's online have.