Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. [technology and related concepts]
5. technology (general associated concept)
6. information technology
7. digital file formats
8. digital moving image formats

Anotations

Scope note:

MPEG-4 is an evolving coding standard for defining the compression of audio-visual objects, designed for use in broadcast, interactive and conversational environments. MPEG-4 absorbs many of the features of MPEG-1 and MPEG-2. MPEG-4 incorporates a variety of compression ratios that exchange picture quality for bandwidth and storage size.