About: http://webisa.webdatacommons.org/156888333

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	Because the disk is a metallic material such as a non-ferrous or non-magnetizable metal or alloy, the data recording layer may instead be vacuum-deposited on to the surface of the disk.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com