Pioneer Pro DJ Designed by DJs for DJs and drawing inspiration from Pioneer’s industry standard CDJ-1000 series, this latest member of the world-famous CDJ family is fully geared up to serve the next generation of digital artists. The CDJ-400 allows DJs to play their MP3 collection off CD-R/RW discs as well as music from mass storage USB devices, such as USB keys, external hard drives and portable media devices [1]. The deck also features the world’s first Scratch Jog Effects [2], with three creative scrat...