Sustainability of Digital Formats: Planning for Library of Congress Collections

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MPEG-2 File with Main Profile Video and Layer II Audio Encoding

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Format Description Properties Explanation of format description terms

Identification and description Explanation of format description terms

Full name MPEG-2 File with Main Profile Video and Layer II Audio Encoding
Description File containing an MPEG-2 program stream consisting of Main Profile MPEG-2 encoded video multiplexed with MPEG-1 and MPEG-2 Layer II encoded audio. The program stream may also be delivered via a serial interface.
Production phase Generally a final-state (end-user delivery) format.
Relationship to other formats
    Contains MPEG-2_MP, MPEG-2, Main Profile
    Contains MPEG_layer_2_audio, MPEG-1 and MPEG-2 Layer II Audio Encoding

Local use Explanation of format description terms

LC experience or existing holdings See MPEG-2_family
LC preference See MPEG-2_family

Sustainability factors Explanation of format description terms

Disclosure Open standard. See MPEG-2_family
    Documentation See MPEG-2_family
Adoption Files based on program streams that combine MPEG-2_MP (Main Profile) and Layer II audio are widely used, e.g., by the Vanderbilt University TV News Archive when reformatting its analog videotapes and when making new off-air recordings.
    Licensing and patents See MPEG-2_family
Transparency See MPEG-2_family
Self-documentation See MPEG-2_family
External dependencies See MPEG-2_family
Technical protection considerations See MPEG-2_family

Quality and functionality factors Explanation of format description terms

Moving Image
Normal rendering See MPEG-2_MP
Clarity (high image resolution) See MPEG-2_MP
Functionality beyond normal rendering See MPEG-2_MP
Sound
Normal rendering See MPEG_layer_2_audio
Fidelity (high audio resolution) See MPEG_layer_2_audio
Multiple channels See MPEG_layer_2_audio
Functionality beyond normal rendering See MPEG_layer_2_audio

File type signifiers and format identifiers Explanation of format description terms

Tag Value Note

Notes Explanation of format description terms

General  
History  

Format specifications Explanation of format description terms


Useful references

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Last Updated: Monday, 27-Feb-2017 09:55:30 EST