About: http://webisa.webdatacommons.org/297807122

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	The present invention relates to optical heads for writing data signals in optical recoding media such as optical disks and optical cards, and also to reading recorded signals from such recording media.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com