MPEG-l is the first generation of video codecs proposed by the Motion Picture Experts Group (MPEG) as a standard to provide video coding for digital storage media (DSM), such as compact disc (CD), digital audio tape (DAT), Winchester discs and optical drives. This development was in response to industry needs for an efficient way of storing visual information on storage media other than the conventional ana logue video cassette recorders (VCRs). At the time the CD-ROMs had the capability of 648 Mbytes, sufficient to accommodate movie programmes at a rate of approximately 1.2 Mbit/s, and the MPEG standard aimed to conform roughly to this target. Although in most applications the MPEG-l video bit rate is in the range of 1-1.5 Mbit/s, the international standard does not limit the bit rate, and higher bit rates might be used for other applications.

Inspec keywords: video coding; CD-ROMs; media streaming; video codecs; storage media; digital storage

Other keywords: analogue VCR; digital storage media; bit rate 1 Mbit/s to 1.5 Mbit/s; Winchester disc; digital audio tape; video codec; Motion Picture Experts Group; byte rate 648 MByte/s; DAT; video coding; analogue video cassette recorder; MPEG-1; CD-ROM; optical drive; compact disc; visual information storage; CD; moving picture coding

Subjects: Multimedia communications