First off, I am not a Jonathan Peter's fan, and have never heard him spin. Second, yes, DT does use CDs BUT he mainly uses vinyl. Good DJs are able to incorporate several different forms of media into thier sets. Howells, for instance, will have 3 tables, 2 cd decks, and a computer at hand. If you do not go to clubs to judge the DJs then there was no point to you posting in the first place, because that means you do not care about the music enough to TRULY listen to and judge a DJ. Just a thought.