http://www.lifehacker.jp/2011/06/110619hard-drivewoelectricity.html

http://taitan-no.net/archives/2011/06/24/0805.php

http://gigazine.net/news/20110615_sako_interview/

http://internet.watch.impress.co.jp/docs/news/20110623_455274.html

http://plusd.itmedia.co.jp/pcuser/articles/1106/30/news068.html

http://pc.watch.impress.co.jp/docs/column/hothot/20110621_454643.html

http://plusd.itmedia.co.jp/pcuser/articles/1106/24/news022.html

http://plusd.itmedia.co.jp/lifestyle/articles/1107/01/news079.html