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MARC PROPOSAL NO. 2012-06

DATE: May 21, 2012
REVISED:

NAME: Defining Subfield $c (Qualifying information) in Field 028 (Publisher Number) in the MARC 21 Bibliographic Format

SOURCE: Music Library Association

SUMMARY: This paper proposes that subfield $c (Qualifying information) be added to field 028 (Publisher Number) to accommodate RDA instructions on recording identifiers for the manifestation (2.15)

KEYWORDS: Field 028 (BD); Publisher Number (BD); Identifiers (BD)

RELATED:

STATUS/COMMENTS:
05/21/12 - Made available to the MARC community for discussion.

06/23/12 – Results of MARC Advisory Committee discussion: Approved with the amendment that $q be used for Qualifying information rather than $c.  There was consensus that other identifier fields (e.g., 020, 022, 024) be surveyed to see if separate subfielding would be equally useful for them and to bring a proposal to Midwinter if so. 

07/25/12 - Results of LC/LAC/BL review - Agreed with the MARBI decision.  

Proposal No. 2012-06: Defining Subfield $c in Field 028

1. BACKGROUND

RDA instructions on recording identifiers for the manifestation (2.15) have provisions to add a qualification after each identifier when the resource bears more than one identifier of the same type or when identifiers for parts of the resource are recorded. Identifiers for manifestations covered by these provisions include publisher’s numbers for sound recordings and videorecordings, which are encoded in field 028 of the MARC Bibliographic Format (publisher’s numbers for music and plate numbers for music, also encoded in field 028, are not covered by the provisions on qualification). Field 028 is currently defined in the Bibliographic format as follows:

• 028 - Publisher Number (R)
• Formatted number used for sound recordings, videorecordings, printed music, and other music-related material. Publisher's numbers that are given in an unformatted form are recorded in field 500 (General Note). A print constant identifying the kind of publisher number may be generated based on the value in the first indicator position..
  
  
• Numbers that are identified as stock numbers are recorded in field 037 (Source of Acquisition). In case of doubt as to whether a number is a publisher's number, record the number in field 500 or 037. Repeatable for multiple numbers associated with an item.
  
• • Indicators
    • First - Type of publisher number
    • • 0 - Issue number
      • 1 - Matrix number
      • 2 - Plate number
      • 3 - Other music number
      • 4 - Videorecording number
      • 5 - Other publisher number
    • Second - Note/added entry controller
      • 0 - No note, no added entry
      • 1 - Note, added entry
      • 2 - Note, no added entry
      • 3 - No note, added entry
  • Subfield Codes
    • $a - Publisher number (NR)
    • $b - Source (NR)
    • $6 - Linkage (NR)
    • $8 - Field link and sequence number (R)

Existing content designation does not support recording qualification in field 028. No subfield has been defined for that purpose and MARC documentation doesn’t include language that would allow recording qualification in one of the existing subfields either, as is the case with subfield $a in field 020.

2. DISCUSSION

Following RDA instructions on qualification of identifiers for manifestations would currently require using a combination of field 028 and field 500. It would be more efficient if a subfield were defined for the purpose of recording qualification. This way field 028 could be used both for indexing and for display even when qualification needs to be recorded. The following examples illustrate the differences in approach.

Example 1: 2 CDs, with a number for the set and a number for each CD

Current Practice:

028 00 $a 438 953-2 $b Philips Classics
028 00 $a 438 954-2 $b Philips Classics
028 00 $a 438 955-2 $b Philips Classics
500 ## $a Philips Classics: 438 953-2 (set).
500 ## $a Philips Classics: 438 954-2 (disc 1).
500 ## $a Philips Classics: 438 955-2 (disc 2).

Proposed Practice:

028 02 $a 438 953-2 $b Philips Classics $c (set)
028 02 $a 438 954-2 $b Philips Classics $c (disc 1)
028 02 $a 438 955-2 $b Philips Classics $c (disc 2)

Example 2: CD with two different numbers, one on the label and the other on the container spine

Curent Practice:

028 00 $a K2 31158 $b EMI Music Canada
028 00 $a 7243 8 31158 2 $b EMI Music Canada
500 ## $a EMI Music Canada: K2 31158 (on label).
500 ## $a EMI Music Canada: 7243 8 31158 2 (on container spine).

Proposed Practice:

028 02 $a K2 31158 $b EMI Music Canada $c (on label)
028 02 $a 7243 8 31158 2 $b EMI Music Canada $c (on container spine)

Example 3: 2 DVDs, with a number for the set and a number for each DVD

Current Practice:

028 40 $a 440 073 032-9 $b Deutsche Grammophon
028 40 $a 440 073 033-9 $b Deutsche Grammophon
028 40 $a 440 073 034-9 $b Deutsche Grammophon
500 ## $a Deutsche Grammophon: 440 073 032-9 (set and guide)
500 ## $a Deutsche Grammophon: 440 073 033-9 (disc 1)
500 ## $a Deutsche Grammophon: 440 073 034-9 (disc 2)

Proposed Practice:

028 42 $a 440 073 032-9 $b Deutsche Grammophon $c (set and guide)
028 42 $a 440 073 033-9 $b Deutsche Grammophon $c (disc 1)
028 42 $a 440 073 034-9 $b Deutsche Grammophon $c (disc 2)

3. PROPOSED CHANGES

In Field 028 of the MARC 21 Bibliographic Format, define:

$c – Qualifying information

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