Ok, thanks! If someone knows the answer naturally it is welcome. Regarding the KS interface I find it more fascinating than BD, while for the price BD costs about half price, and if you receive good offers, you can buy it at a bargain price. Besides the fact that with KS you have only 1 device and with BD 5 devices. Of course we have shareable opinions or not, the important that everyone expresses them judgment, we are also here to compare the products.