The Tascam CD-RW900MKII and CD-RW901MKII are professional CD recorders that replace the best-selling CD-RW900SL and CD-RW901SL. A new TEAC tray-loading transport ensures years of reliable operation in the most demanding installations. The new transport also allows gapless recording when writing track markers, something not possible using off-the-shelf PC drives. Various recording features like automatic track creation help the operator create polished recordings without constant supervision. An AKM AK4528VM is used for AD/DA conversion for clean, clear sound quality with a frequency response of 20Hz to 20kHz +/-0.8dB.  I have two new in a box for sale at $449.00 each.