About: http://webisa.webdatacommons.org/83024759

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	But it depends on how important is for you, if you have problems for example with some discs then it is necessary.
http://www.w3.org/ns/prov#wasQuotedFrom	cdrinfo.com