In article , Leif Neland
wrote:

I guess Fraunhofer[sic] wasted their money then.

mp3 works by removing what you can't hear.

By removing what can't be heard in noisy environments and/or on bad
equipment.

nope. it's in normal listening conditions, including using top quality
equipment.

in a double-blind test, people consistently *can't* tell the difference.

I'm not sure if mp3's by themselves removes dynamics, or if it is
possible to keep the original dynamics.

they don't, since a quality mp3 is indistinguishable from the original.
again, double-blind tests confirm this.