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Previously, local genre/form headings were used to reflect carriers; this is no longer Harvard Library's preferred practice. Genre/form headings should be taken from recommended controlled vocabularies and added as 655_7.
Use appropriate technical specifications of a resource fields appropriate to the resource being described.
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347 Digital File Characteristics
Examples:
338 __ $$a videocassette $$b vf $$2 rdacarrier
340 __ $$b 1/2 in.
344 __ $$a analog $$2 rdatr
344 __ $$b magnetic $$2 rdarm
346 __ $$a VHS $$2 rdavf
346 __ $$b NTSC $$2 rdabs
655 _7 $$a Videocassettes. $$2 aat
338 __$$a microfilm reel $$b hd $$2 rdacarrier
655_7 $$a Microfilms.$$2 aat
655_7 $$a stats (copies) $$2 aat
Holdings Records
In the holdings record, modify the 852 subfields b and c to follow these formats:
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