The Tascam CD-RW900 Mk II is professional-grade CD recorder that can also be used for a variety of playback functions, making it especially useful for churches, schools, performance venues and others with specialized playback needs.  Playback can be set to a prescribed sequence, random or repeating as needed.  The unit will record to standard CDs or rewriteable CDRWs, making it highly economical.Input/output can be analog via RCA connectors, or digital via RCA or optical connectors.  It has rack ears and occupies two rack units.According to the manufacturer, the read/write unit is made by TEAC, and the The AK4528VM AD/DA chipset manufactured by Asahi Kasei Electronics is employed for finer AD/DA conversion for crystal clear sound quality.  The high-performance AKM codec captures audio with a wide dynamic range for better-sounding CD recordingA variety of track division functions make recording simple, and a rec-mute function can insert silence between tracksThis particular unit was used by a professional audio engineer to provide on-location proof CDs for clients.  It was always carried in a racked case and has been well cared-for and the laser lens frequently cleaned.