The Free On-line Dictionary of Computing (30 December 2018):

MPEG-2

    A variant of
   the MPEG video and audio compression algorithm and file
   format, optimised for broadcast quality video.  MPEG-2 was
   designed to transmit images using progressive coding at 4
   Mbps or higher for use in broadcast digital TV and DVD.
   An MPEG-2 player can handle MPEG-1 data as well.

   MPEG-2 has been approved as International Standard
   IS-13818.

   (1995-04-18)