530 Subfield $a - Additional physical form available note:
Subfield $a contains a description of the additional physical form(s) and any text not belonging in the other subfields.
Examples:
530 ##$aIssued as Beta 1/2 in. or VHS 1/2 in. or U-matic 3/4 in.
530 ##$aCOM fiche and hard copies available for consultation.
530 ##$aIssued also as 16 mm. filmstrip in cartridge and as slide set and as videorecording.
530 ##$aIssued also as a motion picture.
530 ##$aAvailable on microfiche.
Notes describing other editions are recorded in field 500 (General Note)
.
Example:
500 ##$aIssued in 1978 in longer version (51 min.).
[A version note given in field 500.]