cant play DSD .dsf files on Melco N1A/minimserver

[zheng4]

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I bought a Melco N1A, installed minimserver on it, connected to the PS Audio DirectStream DAC Jr using ethernet cable (i.e., using Melco N1A player mode). The problem is that I can't play any .dsf files. The PS Audio DAC can receive and play DSD .dsf and .diff file without any problem if I use Roon on my PC. Please advice.