Punctuation:  The identifying numbers of the units in hand of the incomplete copy are given in parentheses following the number of units in a complete copy.  Separate each number with a comma, space punctuation, and in the case of consecutive units, place a hyphen between the numbers and follow with a comma, space, if more units are to be recorded.

If a work (including a work with separate picture and track) lacks part of the image and/or sound, it is incomplete.  If the sound is missing, see 5C3.  Usually, do not consider a work incomplete if it is missing only a few seconds or a few frames.

If the complete number of units comprising a moving image work is known, and the copy in hand lacks one or more units, specify the number of units in hand, the number of units in the complete work, and the identifying numbers of the units in hand.

Use the following abbreviations for the unit term that precedes the identifying numbers.  There is no space between the abbreviation and number.  Further clarification may be placed in a note.  See 7B14.


film reel, videoreel


film cassette, film cartridge, videocassette, videocartridge



300 ## $a 7 film reels of 12 (rl-3, 5-7, 10) (ca. 69 min., 6,190 ft.) : $b sd., col. ; $c 35 mm. $3 answer print.

300 ## $a 2 videocassettes of 3 (c2-3) (Beta) (100 min.) : $b sd., col. ; $c 1/2 in. $3 viewing copy.

Use the unit terms "roll" for film roll and "loop" for film loop.


5B4.1.  Unit numbering uncertain or unknown

5B4.2.  Incomplete units

See also:

5B.  Extent of work and specific material designation

5.  Physical Description Area