I live in korea and some drive are more expensive than others over here, but it is reversed in amercia, which is better?(sorry for the engrish)
http://www.newegg.com/Product/Product.aspx?Item=N82E16822236625
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136533
http://www.newegg.com/Product/Product.aspx?Item=N82E16822236625
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136533