i can hear the shitty sound of compressed music (this is y i download lossles music .wav .aiff .flac ect) so i avoid mp3s ,i think that cds do sound verry good , im just curios if they sound as good as the master tape?? iv looked at some diagrams and stuff and i see how a cd might not be able to do a verry good job of keeping an audio signal (at least the verry high frequencies anyway) . the sampel rate is 44.1khz ...this means that the frequancies in a song at about 20khz will onley be sampeled slightley more than 2 times per cycle....if this is correct it means that the high frequencies will be distorted . if thers a capacitor of some sort on the output of the DAC it should smooth out the waveform so it will be allmoast exactley the same as the origanal sound? is this how cd players actualy work??? also is dvda and sacd just marketing scemes to try to get ppl to re-buy all there music and to try to get every one using a format with heavy copy protection???