mime-subtype Mime Subtype

Mime subtype for a graphic, multimedia object, or piece of supplementary material.


Although this Tag Set cannot enforce it, the element <graphic> should be limited to still images. The element <media> should be reserved for objects whose @mime-subtype involves video, audio, moving images, time-dependent graphical types, and other non-XML data types. Mimetypes and subtypes should be set accordingly but are not constrained by this Tag Set.
The source for this attribute’s values is the Internet Assigned Numbers Authority (IANA).
OPTIONAL on element: <inline-graphic>
Value Meaning
cgm Computer Graphics Metafile.
gif CompuServe Graphic Interchange Format.
jpeg Joint Photographic Experts Group raster.
png Portable Network Graphics.
tiff Tag Image File Format.
Restriction @mime-subtype is an optional attribute; there is no default.
OPTIONAL on many elements; click for list and usage
Value Meaning
Text, numbers, or special characters A specific mime subtype (from the November 2003 list).
Restriction @mime-subtype is an optional attribute; there is no default.
Tagged Sample

Mime subtypes (such as MPEG) for multimedia objects

 <media mime-subtype="mpeg" mimetype="video" orientation="portrait"
   position="anchor" specific-use="archival-format" xlink:href="v1"></media>
 <media mime-subtype="x-flv" mimetype="video" orientation="portrait"
   position="anchor" specific-use="online-format" xlink:href="v1"></media>