problem installing minim server on Synology NAS DS212J)

[pinchi22]

I mean that nearly all of my high resolution audio files do not play using Disk Station. I can see the tracks with my control point (iPad3), I can select them, and the Naim app does tell me those tracks have been "added". Then, nothing. A "Can't play" message appears where the type of file normally appears, and after 15 seconds a "No track playing" message shows up. Of course there is no music.

Yet, I am still able to play a few of my hi resolution albums (all of which are evidently WAV88.2 or 96 kHz files).

I am able to play standard resolution files using the same Disk Station.

I am using Disk Station 5.1, Java v8 and the latest version of MinimServer.

Dazed and confused.