I'm wondering if any of you have ever seen / heard a noticeable difference in mastering quality between the US and UK (or any other release) versions of a given album. I remember reading somewhere on this forum that there was a requirement for albums in the UK to be released with "headroom" - that is, (and forgive my inexperienced description) albums in the UK are required to have a certain amount of unused "space" between the peak gain levels and the maximum gain levels supported by the CD format.
I'm becoming something of an audiophile, and i've noticed some of my favorite albums are suffering from a bad case of "loudness war" (Gorrillaz - Demon Days, and The White Stripes - Icky Thump). Of course, i have no hard evidence of this, only my perception of the quality, which is getting better.
I would love any insight you have to offer.
-Brian