This unit provides an unusual combination of mass storage, direct access to stored audio and ease of operation, all in a professional quality package. The main array of 50 buttons are Hot-Keys numbered 1 through 50. A Hot-Keys primary function is to trigger playback of a Cut assigned to it. Hot-Keys light up whenever their assigned Cut is playing. Any file previously recorded on Instant Replay may be edited with head and tail trims, variable- length fades, and overall gain adjustment.