[Enhance] OCLC QC Tip of the Month Jan. 2011 / Dates of availability for special formats

[Goodson,Luanne]

> This message is being widely cross-posted. 

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> New text added to Bibliographic Formats and Standards: Dates of first availability in history for some non-book formats

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> Bibliographic Formats and Standards (BFAS) Field 260 $c http://www.oclc.org/bibformats/en/2xx/260.shtm  has been updated with dates of first availability for the following formats: COM (electronic resources), REC (sound recordings), and VIS (visual materials). 

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> Items which have previously been published in a different physical format than the one they are now available in often lack a new date of publication.   AACR2 requires that catalogers make an educated guess as to the current date of publication when one cannot be determined.  Knowing when a physical format first became commercially available helps in making such a determination.

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> To help catalogers, the following  information has been added to the guidelines found under field 260 $c for each format:

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> COM guidelines for ‡c           

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> These are the dates of first availability (publication) of some of the major computer file media. Dates earlier than these cannot be a proper date of publication for that computer file medium. Earlier dates may represent such bibliographic events as release date in a different computer file medium, etc.

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> 3 1/2 inch floppy disk: 1982

> 5 1/2 inch floppy disk: 1976

> 8 inch floppy disk: 1971

> CD-ROM: 1985

> DVD-ROM: 1996

> Electronic files remotely accessed via the World Wide Web: 1991

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> REC guidelines for ‡c            

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> If the date of recording differs from the date of publication, enter the recording in coded form in field 033 and in textual form in field 518.

> 033      0          0          1961----

> 260                              [New York] : ‡b Music Guild, ‡c 1971.

> 518                              Recorded in 1961.

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> These are the dates of first availability (publication) of some of the major audio media. Dates earlier than these cannot be a proper date of publication for that audio medium. Earlier dates may represent such bibliographic events as date of sound capture, release date in a different audio medium, etc.

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> Audio cassette: 1965

> Audio CD: 1982

> DVD-Audio: 2000

> LP: 1948

> Playaway: 2005

> Reel-to-reel tape: 1954

> Streaming audio: 1999

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> VIS guidelines for ‡c             

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> These are the dates of first availability (publication) of some of the major videorecording media. Dates earlier than these cannot be a proper date of publication for that videorecording medium. Earlier dates may represent such bibliographic events as release date in a different videorecording medium, etc.

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> Beta cassettes: 1975

> Blu-ray disc: 2006

> CAV (Constant Angular Velocity) standard play laser optical discs: 1978

> CLV (Constant Linear Velocity) standard play laser optical discs: 1978

> CED (Capacitance Electronic Disc) video discs: 1981

> DVD-Video: 1996 (Japan); 1997 (USA)

> Streaming video: 1999

> U-matic/U-standard cassettes: 1971

> VHS cassettes: 1976

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> Please send any questions or concerns to: askqc at oclc.org 

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> Luanne Goodson 

> Consulting Database Specialist 

> OCLC Quality Control Section 

> 6565 Kilgour Place MC 139 

> Dublin, Ohio, USA 43017-3395

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