Guess a publication date
 
         Cassettes commercially available after 1965
         Compact discs (CDs) commercially available after 1982
 
AACR2 Rule 1.4F7
 
Example:
 
Bib record:
 
260 ‡c [198-]
 
008 Publication status:         s
008 Date 1:                  198u
008 Date 2                  [blank]
 
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END, unless there also is a sound recording copyright date for the actual sound
 
Is there also a sound recording copyright date for the actual sound?
 
         (c) or (p) before 1971
         (p) after 1970
 
 
Yes                 No