I'm using the BDP with a Chord Hugo DAC. So far I've had DSD 64 , DSD 128 and DXD all working with this combination without problem over USB (but not Coaxial) when using the BDP directly. One of the issues I have had to date is that when using the BDP as a DLNA renderer, I haven't been able to play DSD at all as output defaults to Coaxial rather than USB. Since taking the latest MM Beta update though, somewhat unexpectedly, the BDP now outputs DSD over Coaxial, but only when used as a renderer, not directly.