About: http://webisa.webdatacommons.org/370035140

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	A test signal is recorded on a position of the optical disc near a recording position thereof via the optical head during the writing of the information signal into the memory.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com