DV
http://www.watch.impress.co.jp/av/docs/20040707/sony.htm
http://www.watch.impress.co.jp/av/docs/20040707/canopus.htm
http://www.itmedia.co.jp/lifestyle/articles/0407/08/news005.html?nc20
http://www.watch.impress.co.jp/av/docs/20040707/sony.htm
http://www.watch.impress.co.jp/av/docs/20040707/canopus.htm
http://www.itmedia.co.jp/lifestyle/articles/0407/08/news005.html?nc20