Music Library Association Best Practices for capture information

Record the element for audio and video recordings if details are not adequately captured by more specific element subtypes or if otherwise instructed. Where possible, prefer recording one or more of the more specific element subtypes instead.

In MARC: Record as an unstructured description using field 500 subfield $a or as a component part of a structured description in field 518 subfield $o.

Apply the option.