Disc playing means that DJ uses professional machines such as disc player and mixer to seamlessly connect several electronic dance music with completely different rhythms, melodies, emotions and musical styles, and edit these electronic dance music. DJs usually play CDs in nightclubs, bars and other places. Disc playing refers to the whole working process of DJ, which is different from disc rubbing and disc rubbing. Rub the disk, rub the disk is to stop by hand or make the disk turn faster, so that some songs with different rhythms become a rhythm. Or manually control the head to paddle around the disc.