OLAC Best Practice for layout
Prerecording
Prerecording
Record if considered important.
Recording
Recording an unstructured description
Option
Apply the option if there is not a sufficiently specific term in the RDA Layout vocabulary.
Recording a structured description
Recording a structured description
Apply the option. Note that terms "single sided" and "double sided" do not apply to videodiscs. Record "rdalay" as the source of term in MARC field 340 $2.
Recording an identifier
Recording an IRI
Document Date: 2026/02/06
Document: https://access.rdatoolkit.org/en-US_ala-2ce44ee0-e51d-3d8a-b9d9-9ecbaf894b51