About: http://webisa.webdatacommons.org/87147472

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	First try disconnecting one of the CDROM drives (physically disconnecting the data cable, THEN removing it from device manager), it might be just a conflict, especially if both drives are installed on the same IDE port.
http://www.w3.org/ns/prov#wasQuotedFrom	pcper.com