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+Network Working Group R. Guenther
+Request for Comments: 2220 Library of Congress
+Category: Informational Network Devt. & MARC Standards Office
+ October 1997
+
+
+ The Application/MARC Content-type
+
+Status of this Memo
+
+ This memo provides information for the Internet community. It does
+ not specify an Internet standard of any kind. Distribution of this
+ memo is unlimited.
+
+Copyright Notice
+
+ Copyright (C) The Internet Society (1997). All Rights Reserved.
+
+Abstract
+
+ This memorandum provides a mechanism for representing objects which
+ are files of Machine-Readable Cataloging records (MARC). The MARC
+ formats are standards for the representation and communication of
+ bibliographic and related information. A MARC record contains
+ metadata for an information resource following MARC format
+ specifications.
+
+1. Introduction
+
+ The MARC formats are sets of codes and content designators defined
+ for encoding metadata for five types of data: bibliographic,
+ holdings, authority, classification, and community information. The
+ structure of MARC records is an implementation of national and
+ international standards, ANSI Z39.2 (Information Interchange Format)
+ and ISO 2709 (Format for Information Interchange). Codes and
+ conventions in the formats identify and characterize data elements
+ within a record and support the manipulation of those data.
+
+ MARC formats are communication formats, primarily designed to provide
+ specification for the exchange of bibliographic and related
+ information between systems. They are widely used in a variety of
+ exchange and processing environments. They do not mandate internal
+ storage or display formats to be used by different systems.
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+Guenther Informational [Page 1]
+
+RFC 2220 Application/MARC Content-type October 1997
+
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+2. Definition
+
+ Since there are different flavors of MARC which would be processed by
+ different applications, this content-type/subtype refers to the
+ harmonized USMARC/CANMARC specification. Additional content-
+ types/subtypes may be defined in the future (e.g.
+ application/unimarc).
+
+ MARC records involve three elements: the record structure, content
+ designation, and data content. Only those records that contain all
+ three elements according to the standard would use this content-
+ type/subtype, i.e. content extracted from the structure would not.
+ Since MARC does not mandate an internal storage format, parameters
+ have not been assigned to specific implementations (e.g. OCLC-MARC,
+ LC-MARC, etc.). In addition, parameters have not been defined for
+ the specific type of MARC format (e.g. bibliographic, authority,
+ holdings), since the information is contained in the Leader portion
+ of the record.
+
+3. Registration Information
+
+ To: ietf-types@iana.org
+
+ Media type name: application
+
+ Media subtype name: marc
+
+ Required parameters: None
+
+ Optional parameters: None
+
+ Encoding considerations: MARC records may contain long lines and/or
+ arbitrary octet values. The base64 content-transfer-encoding is
+ recommended for transmission of MARC over electronic mail.
+
+4. Security Considerations
+
+ There are no known security risks associated with the use or viewing
+ of MARC data. A MARC record may have security classification
+ associated with the document it describes or metadata in that record.
+ Although this does not present any security risk to the user of MARC
+ data, it may provide an opportunity for a security breach for the
+ source of classified MARC data.
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+Guenther Informational [Page 2]
+
+RFC 2220 Application/MARC Content-type October 1997
+
+
+5. Interoperability Considerations
+
+ MARC is a communication format and is designed for interoperability
+ between different systems that may store data in local formats
+ internally.
+
+6. Published Specification
+
+ "USMARC Format for Bibliographic Data"; "USMARC Format for Authority
+ Data"; "USMARC Format for Holdings Data"; "USMARC Format for
+ Classification Data"; "USMARC Format for Community Information".
+
+ Additional information:
+ File extension: .mrc
+ OID: 1.2.840.10003.5.10
+
+ Person & email address to contact for further information:
+ Network Development & MARC Standards Office <ndmso@loc.gov>
+ 101 Independence Ave. SE
+ Library of Congress
+ Washington, DC 20540-4102 U.S.A.
+
+7. References
+
+ Library of Congress, Network Development and MARC Standards
+ Office, "USMARC Format for Bibliographic Data", 1994- .
+
+ "USMARC Format for Authority Data", 1993- .
+
+ "USMARC Format for Holdings Data", 1989- .
+
+ "USMARC Format for Classification Data", 1991- .
+
+ "USMARC Format for Community Information", 1993- .
+
+8. Author's Address
+
+ Rebecca Guenther
+ Network Development & MARC Standards Office
+ Library of Congress
+ 101 Independence Ave. SE
+ Washington, DC 20540-4102 U.S.A.
+
+ Phone: +1 (202) 707-5092
+ FAX: +1 (202) 707-0115
+ EMail: rgue@loc.gov
+
+
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+
+Guenther Informational [Page 3]
+
+RFC 2220 Application/MARC Content-type October 1997
+
+
+9. Full Copyright Statement
+
+ Copyright (C) The Internet Society (1997). All Rights Reserved.
+
+ This document and translations of it may be copied and furnished to
+ others, and derivative works that comment on or otherwise explain it
+ or assist in its implmentation may be prepared, copied, published
+ andand distributed, in whole or in part, without restriction of any
+ kind, provided that the above copyright notice and this paragraph are
+ included on all such copies and derivative works. However, this
+ document itself may not be modified in any way, such as by removing
+ the copyright notice or references to the Internet Society or other
+ Internet organizations, except as needed for the purpose of
+ developing Internet standards in which case the procedures for
+ copyrights defined in the Internet Standards process must be
+ followed, or as required to translate it into languages other than
+ English.
+
+ The limited permissions granted above are perpetual and will not be
+ revoked by the Internet Society or its successors or assigns.
+
+ This document and the information contained herein is provided on an
+ "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
+ TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
+ BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
+ HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
+ MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE."
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+Guenther Informational [Page 4]
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