Guide to Cataloging DVD and Blu-ray Discs Using AACR2r ... - OLAC

DVD-ROMs increasingly include more than one type of content. For example, there
could be a moving image on the DVD-ROM and there could also be a game. It is up
to the cataloger to decide which content is more significant. This is cataloger’s
judgment.
Leader 06 (Type of Record) coded "m" for "computer file" is reserved for the following
types of electronic resources:
• computer software (including programs, games, fonts)
• numeric data
• computer-oriented multimedia
• online systems or services
In case of doubt or if the most significant aspect of the DVD-ROM's content cannot
be determined, then the Leader 06 (Type of Record) is coded "m" for computer file by
default.
Fixed-length Data Elements
The 006 field is used to describe additional characteristics that cannot be coded in the
008 field.
The 007 field describes in coded form the physical characteristics of the electronic
resource.
The 008 field contains coding that describes the basic characteristics of the resource
as a whole. However, the 008 field is non-repeatable.
A. 006 Fixed-length Data Elements—Additional Material Characteristics
(Optional; Repeatable)
If the DVD-ROM is not coded “m” in Leader/06 (e.g., a DVD-ROM consisting primarily of
text, images, maps, or video), the 006 field is used to record the coded computer file
aspects of the item, i.e., the 006/00 (Form of Material) character position will be
coded “m” for computer file. Code other values as appropriate. It is possible that
there may be some redundancy between the 006/007/008.
The coding for the 006 is explained in MARC 21 Format for Bibliographic Data
as well as the OCLC
Bibliographic Formats and Standards
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