OLAC Best Practice for aspect ratio designation
Prerecording
Prerecording
Record when readily available for video recordings.
Recording
Recording an unstructured description
Option
Cataloger's judgment. Optionally record with aspect ratio in a note, if this information is found in the manifestation. Do not combine aspect ratio designation with the equipment or system requirement note.
Recording a structured description
Option
Apply the option.
Recording an identifier
Recording an IRI
Document Date: 2026/02/06
Document: https://access.rdatoolkit.org/en-US_ala-371d91f7-3521-3c1a-bd69-3348a2d0288a