As for making CD's redundant, thats one of the reason's I got mine. I was a big Minidisc fanatic, as CD's in the car and out mobile are shit : minidisc gave all of the functionality with none of the drawbacks. But I tired of constantly copying CD's to MD's, erasing, copying again etc.

So getting into MP3, I could load all of my music (well, nearly) onto one little device, alf the size of a pack of cigarettes, and take it anywhere, any place and any time. At home I mostly use a Media Centre for music and movie playback, but for those times I just can't be arsed to boot a computer up, plugging the ipod into the dock next to my amp means I still have full control of my music collection without the hassle of choosing and changing CD's.

Ok, so some might like the tangible aspect to CD's, and some have expensive CD players and like to listen to it in "full" glory (bear in mind that even CD's are compressed, just like DVD's and BluRay films are compressed from the original tape real recordings), but for ease of use and day to day convenience, MP3's far outweigh CD's!