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2.2 Compact discs with accompanying booklets
When a compact disc consists of a compact disc and an accompanying booklet that is not laid in the container the compact disc receives a call number od CD XXX-XXXX|zCD and the accompanying booklet receives a call number of CD XXX-XXXX|zTEXT.
2.3 Cassette tapes
Only in rare instances do we receive cassette tapes. The call number for a cassette tape of a musical performance is formed in the exact same way as a compact disc with the exception of the prefix being CASS, i.e., CASS XXX-XXXX.
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