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347 Digital File Characteristics (R)

       

Input Standards

Required if applicable/Required if applicable
1st Indicator  Undefined
blank character Undefined
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
ǂa File type (R) Required if applicable/Optional
ǂb Encoding format (R) Required if applicable/Optional
ǂc File size (R) Required if applicable/Optional
ǂd Resolution (R) Required if applicable/Optional
ǂe Regional encoding (R) Required if applicable/Optional
ǂf Encoded bitrate (R) Required if applicable/Optional
ǂ0  Authority record control number or standard number (R) Optional/Optional
ǂ2 Source (NR) Optional/Optional
ǂ3 Materials specified (NR) Optional/Optional

Definition

Technical specifications relating to the digital encoding of text, image, audio, video, and other types of data in a tangible resource. This information could also be recorded in field 300 subfield ǂb.

File type (subfield ǂa) and file size (subfield ǂc) are core elements under RDA for cartographic materials only.

Use field 347 for both tangible and online electronic resources.

Under Provider-Neutral practices, file size (347 subfield ǂc) should be omitted for online resources because it may differ from one iteration to another. See Provider-Neutral E-Resource MARC Record Guide: P-N/RDA Version (http://www.loc.gov/aba/pcc/scs/documents/PN-RDA-Combined.docx) for additional guidance.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank (blank character).

 
blank character Undefined

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank (blank character).

 
blank character Undefined

Subfields

 
ǂa File type

A general type of data content encoded in a computer file.

347     audio file ǂb CD audio ǂ2 rda
347     image file ǂb JPEG ǂ2 rda
ǂb Encoding format

A schema, standard, etc., used to encode the digital content of a resource.

347     text file ǂb PDF ǂ2 rda
347     video file ǂb Blu-ray ǂ2 rda
ǂc File size

The number of bytes in a digital file. Under Provider-Neutral practices, file size should be omitted for online resources because it may differ from one iteration to another.

347     data file ǂb XML ǂc 182 KB ǂ2 rda
ǂd Resolution

The clarity or fineness of detail in a digital image, expressed by the measurement of the image in pixels, etc.

347     image file ǂb JPEG ǂd 3.1 megapixels ǂ2 rda
ǂe Regional encoding

A code identifying the region of the world for which a digital file has been encoded which may prevent the file from being played on a player from a different region.

347     video file ǂb DVD video ǂe region 4 ǂ2 rda
ǂf Encoded bitrate

The speed at which streaming audio or video is designed to play.

347     audio file ǂb MP3 ǂf 32 kbps ǂ2 rda
ǂ0 Authority record control number or standard number

For information about subfield ǂ0, see Control Subfields.

ǂ2 Source

Identification of the source of terms when they are from a controlled list. Prefer use of RDA terms.

347     audio file ǂb CD audio ǂ2 lcsh
347     video file ǂb DVD video ǂe region 1 ǂ2 rda
ǂ3 Materials specified

For information about subfield ǂ3, see Control Subfields.

347     ǂ3 Compressed thumbnail ǂa image file ǂb JPG ǂd 3.1 megapixels ǂ2 rda
347     ǂ3 Uncompressed thumbnail ǂa image file ǂb TIFF ǂd 8 megapixels ǂ2 rda

This page last revised: July 27, 2016