ISO/IEC 14776-362:2006

Information technology — Small Computer System Interface (SCSI) — Part 362: Multimedia commands-2 (MMC-2)

The Small Computer System Interface (SCSI) protocol is designed to
provide an efficient peer-to-peer I/O bus with the maximum number of
hosts and peripherals determined by the bus width (8 or 16).
This International Standard defines the SCSI command set extensions
to access multimedia features for all classes of SCSI devices.