About: http://webisa.webdatacommons.org/6513344

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	Another seeming barrier for surround sound in MP3???s or other formats is that the main devices using them - portable music players - have only two speakers: the left and right headphones.
http://www.w3.org/ns/prov#wasQuotedFrom	mit.edu