2. In digital television signal recording or transmission, the designator that identifies a certain coding algorithm having several levels and profiles, the most sophisticated of which are used for HDTV (high-definition television) applications. Note: M-PEG-2 video coding has been developed for use with satellite TV applications, including the required decoders ("set-top boxes". ) 3. The designator that identifies an international standard for compression of TV signals, which standard is used in conjunction with desktop computers for video presentations or clips. 4. Pertaining to files (with file-name extensions ". Mpg" or ". Mpeg") that are compressed using the MPEG standard. Also written MPEG.