Starting in the 90's the loudness wars began between record companies. Thanks to 90db or so dynamic range of cd's and greedy a-hole record company exec's who no nothing about sound reproduction, most of the music of the past 15 years is ruined. Even against the bands and engineers wants, the loudness was/is increased and the dynamic range compromised, with clipping and harshness resulting during playback.
Turnmeup.org and wikipedia: loudness wars are some insightful reading.
Wonder why I don't by new cd's? They stink, metallica's new cd death magnet is a prime example. Great music, the cd is crap because of the loudness.
I want audiophile cd's, not loud junk.