A-A-55001 Disk Drive Unit, Half Height, Cd-Rom, Small Computer System Interface \(Scsi\), And Other Accessories, General Requirements ForThis CID covers the general requirements for half height, CD-ROM, disk drive units with controller card, cabinet, cables, holder cartridges, software programs, and other accessories as specified. Requirements for specific CD-ROM disk drive units \(e.g., dual drives, single drives\) are covered in the individual CID sheets. Disk drive covered by this CID are intended for commercial/industrial applications.