From: Richard Karnesky
> for example.
Ok, thanks. Looking at that message, it suggests:
You just have to change the definition of <extent> under
<xsd:element name="extent" type="xsd:string"/>
<xsd:element name="extent" type="extentType"/>
like it is defined under <part>.
Unfortunately that was not something that could have been done with a minor
release - e.g. 3.2 to 3.3 - it would have required a major version change,
because it would change the existing definition from a simple string to a
structured element with subelements.
But the suggestion to simply add a unit attribute to extent under
physicalDescription would be possible with a minor version change. I'll pass
that suggestion along to the Editorial Board.