DESC: Marantz PMD371 5 disc rack mount CD player This professional grade rack mount 5-disc carousel CD player is perfect for permanent installation where you want easy access to your music choices. Heavy duty 3RU rackmount design, the PMD371 plays all format discs - pro and consumer CD, CD-R and CD-RW. Fast, bi-directional carousel changes quickly between tracks. Unit also allows you to change the discs on the carousel while one is playing.