This is a very good question and one that we hope you consider.  From the first day we began in the DJ business we made it a point to make sure that all of our music was and is completely legal.  None of the music you hear us play has been copied from other collections.  If we don't have a special song you want, we buy it - we do not find it on a file sharing service.  We respect and value copyrights and those who produce and write music.