Music Library Association Best Practices for configuration of playback channels

Routinely record the element.

In MARC: Record as an identifier using field 007 byte 04 (sound recordings) or byte 08 (video recordings). Additionally: Record as a structured description using field 344 subfield $g. If deemed useful for identification or selection,

See examples in MARC format: configuration of playback channels

Generally do not apply the option unless directed by local policy.

In MARC: If recording a term from the recommended vocabulary encoding scheme, indicate the source of information using the $2 code rdacpc.