RPM” (Ribbon Page Marker) system is a unique and very helpful feature to keep your CD-library or DJ-set organized quick. Two coloured ribbons can be used as page markers to help fast browsing and finding your CDs. Furthermore the additional 12 Preselection-Pockets” offer another helpful feature e.g. for those who play with 3 CD-Players at the same time. They provide easy and quick access to frequently used discs like loops, jingles etc. or to your prepared set.