>What might the letters "EdW" on our CD player mean?
No idea, googling I found
http://www.acronymgeek.com/EDWFrom there the only one at least somehow related to a CD player is Exponential Distorted Wave
[Update] Well, it has nothing to do with sound apparently, so you can safely disregard my message[/Update]
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges