URL: http://panasonic.jp/pc/products/w2a/index.html
URL: http://www.kakaku.com/prdsearch/detail.asp?ItemCD=002004&MakerCD=65&Product=Let%27s+NOTE+W2+CF%2DW2AW1AXR
URL: http://pc.watch.impress.co.jp/docs/2003/0507/pana.htm