This field should contain a comma-seperated
list of types among: Video Sound Image Text
This field is deprecated as it is only used
for filtering on the DKA frontend - it
should instead be implemented as a computed
solr index from the file formats attached to
the object.
A contributor is a
person/organisation on the
"frontside of the camera", such
as an actor.
A creator is a
person/organisation from "behind
of the camera", such as a
producer, director or
destributing organisation.