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MARC Standards
MARC 21 HOME >> Bibliographic Format >> Overlaps Between MARC21 >> MARC21 to TextMD Mapping

TextMD vs. MARC21

MARC21 element TextMD element notes
516$a  Type of Computer File or Data Note 0   If 516$a  specifies something other than Text, TextMD is probably not relevant to the object..
007/10 Quality assurance targets 1 encoding (QUALITY attribute) when 007/01=c this byte may be of slight use in formulating the QUALITY statement
007/12 Level of compression 1 encoding (QUALITY attribute) when 007/01=c this byte may be of slight use in formulating the QUALITY statement
007/13 Reformatting quality 1 encoding (QUALITY attribute) when 007/01=c this byte may be of slight use in formulating the QUALITY statement
514 Data Quality Note 1 encoding (QUALITY attribute) but has MARC 514 ever been used for a text dataset? 
538 System Details Note 1 encoding could include platform, software, and/or agent
856 Electronic Location and Access 1.2 encoding_software esp. 856$c (compression)
538 System Details Note 2 character_info could include data for various elements
546$b Language Note: Information code or alphabet 2.1 charset charset is restricted to IANA names
856$r Electronic Location and Access 2.3 byte_size  
008/35-37 Fixed-Length Data Elements: Language 3 language MARC and TextMD use different landuage code lists.
041 Language Code 3 language TextMD element requires ISO 639-2 codes; MARC21 defaults to MARC codes, but can be used for ISO 639-2 with an ind 2=7 and $2 combination. 
546$a Language Note 3 language MARC21 note is free text
008/35-37 Fixed-Length Data Elements: Language 4 alt_language use TextMD element attribute to identify this as a MARC code
041 Language Code 4 alt_language TextMD allows use of MARC codes, or of any other list of code values.  Optional authority attribute of alt_language should be used.
546$a Language Note 4 alt_language MARC21 note is free text.  That appears to be true for alt_language as well. 
546$b Language Note: Information code or alphabet 5 font_script  
500  General Note 8 processingNote  
538 System Details Note 9 printRequirements  
856 Electronic Location and Access 9 printRequirements  
538 System Details Note 10 viewingRequirements  
856 Electronic Location and Access 10 viewingRequirements  
500  General Note 11 textNote  

MARC 21 HOME >> Bibliographic Format >> Overlaps Between MARC21 >> MARC21 to TextMD Mapping

The Library of Congress >> Especially for Librarians and Archivists >> Standards
( 12/30/2010 )
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