Definition: The size or duration of the resource.
DPLA MAP v4 Usage: Size or duration of described resource.
Enter the number of pages in a paginated resource, the dimensions of bibliographic or graphic materials, or the duration of A/V material.
Values for Extent will be supplied by repository or catalog record. Value for Extent that is born digital may have information embedded in the original file.
This field is not included in the preservation package.