Hi guys! First of all sorry for my english. I have 3 topics. 1.- I own the xdp-300r since a few months a go, I use it with the native app, hiby music and usb audio pro, With the USB audio player when I use files from my smaller sd Card it freeze and close, with the native it just stop a few seconds and keep playing normally, with the hiby everything is normal. Do you thing this is a sd card issue? 2.- I have a few files .dsf and it plays normal, but I dont know if its playing as PCM, just to confirm if this is not compatible natively with dsd. I tryed to active the bit perfect on the usb audio player and it does not play the song. Is this a hardware topic? I mean this dap will never be compatible with dsd? 3.- When I use mqa files, some times the mqa logo is white, and other times is black, it means that for some types of mqa the dap is compatible? Thanks a lot. I forgot to mension that I am using the 300r with a tin t2 with balanced cable and the sennheiser hd58x from massdrop also with balanced cable. Regards!