About: http://webisa.webdatacommons.org/125878219

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	substrate used in making master recordings for high density recorded discs, such as video discs.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com