Element: ext:format-registry
If possible, rather than just listing a format by name, publishers should use formats defined in formal format registries like UDFR http://www.udfr.org or PRONOM http://www.nationalarchives.gov.uk/PRONOM . Alternatively, publishers may define and publish their own registry (list) of object formats they support.
Attributes
Content Model
( #PCDATA | ext-link | date )*
May Contain:
- PCDATA
- <date>
- <ext-link>