Field definition and scope:

Field 337 contains the media type which reflects the general type of intermediation device required to view, play, run, etc., the content of a resource.  It is used as an alternative to or in addition to the coded expression of Media type in field 007/00 (Category of material).  Field 337 information enables indication of more specific media types and media types from various lists.

Multiple media types from the same source vocabulary or code list may be recorded in the same field in separate occurrences of subfield $a (Media type term) and subfield $b (Media type code).  Terms from different source vocabularies are recorded in separate occurrences of the field.

The National level record requirement for this field is Optional.

Field 337 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements, and designator repeatability, see table below:

Position

Description

NLR

MLR

Repeatability

Field 337

Media Type

O

O

R

Indicator:

 

 

 

 

First

Undefined; contains a blank

M

 

 

Second

Undefined; contains a blank

M

 

 

 

 

 

 

 

Subfield code:

 

 

 

 

$a

Media type term

M

O

R

$b

Media type code

M

O

R

$0

Authority record control number or standard number

 

 

R

$2

Source

M

O

NR

$3

Materials specified

O

O

NR

$6

Linkage

A

O

NR

$8

Field link and sequence number

O

O

R

Content designator history:

Field 337 - Media Type  [new, 2009]

Subfield $0 - Authority record control number or standard number  [new, 2015]

Related MARC fields or documents:

RDA in MARC Bibliographic Data

Source Codes for Vocabularies, Rules, and Schemes:

Genre/Form Code and Term Source Codes

Value Lists for Codes and Controlled Vocabularies:

Term and Code List for RDA Media Types

See also:

3XX  Physical Description, Etc. Fields

Variable Data Fields