i am using JRiver 28.0.32 i have a minimax supreme DAC that does DoP i can play DSD128 and DSD64 ok i can up-sample PCM to DSD128, but JRiver will not up-sample DSD64 to DSD128 i have enabled 2x DSD in DoP format but it will not up-sample DSD64 to DSD128 only pcm. one other thing is DSD up-sampling done with PCM in the middle.