http://gigazine.net/index.php?/news/comments/20070720_photorec/

http://internet.watch.impress.co.jp/cda/news/2007/07/20/16394.html

http://headlines.yahoo.co.jp/hl?a=20070721-00000007-san-l24

http://www.nikkei.co.jp/news/main/20070721AT3S2000C20072007.html

http://www.asahi.com/national/update/0719/TKY200707190552.html