Well, to make it less offensive, I have just changed the word "crap" to the word "garbage" in the poll.
Thomas, those 100mW ratings of those MP3 players you discussed are those dreaded PMPO ratings - even more exaggerated than "peak" ratings! (That is, those MP3 player manufacturers take all of those peak power measurements and then add them all up! No wonder those "100mW" MP3 players ARE really weak in terms of their TRUE continuous power output!
) The "peak" power rating is the maximum output of one single peak in the power curve.
In the first post in this thread, "nominal" means the continuous RMS "distortion-free" power output rating, while "maximum" refers to the maximum usable RMS output (that is, on the edge of audible "clipping").