I have bought 2 products from Rio. The first (Rio 500) used to go dead every few months and I had to send it back for refurnishing. The second, Rio 800 138 MB just made a humming noise. Customer service? No answer to 6 e-mails. I tried calling. First, false information provided (deliverately?): just download the firmware and it will work. Then, they mock you: just send us the details and proof of purchase and we will replace. They do not (two attemps). Never, never buy anything from this manufacture or trust it.