+ <xsd:attribute name="captions" type="xsd:int" use="required" />
+ <xsd:attribute name="descriptions" type="xsd:int" use="required" />
+ <xsd:attribute name="metadata" type="xsd:int" use="required" />
+ <xsd:attribute name="dependent" type="xsd:int" use="required" />
+ <xsd:attribute name="still_image" type="xsd:int" use="required" />