To clarify - Miles Gibson is talking about how Buffalo Technology USA does not warranty second-hand product, even it the seller "advertises" the product as new (BT can't control how endusers, or people posing as retailers, advertise their second-hand product). Buffalo Technology USA warranties product sold from BT authorized resellers and distributors.
BT also warranties BT refurbished product (refurbished by us), for three months, as long as it's sold from BT authorized resellers.