I have ripped most of my classical collection to flac format and they are served by Twonky from a Qnap NAS. The system works well with Linn devices but my problem with the Popcorn Hour is that it will not accept flac files from Twonky. There seems to be a reluctance on the part of the PCH people to sort this out and they blame Twonky and they maintain flac is not part of the upnp specification.
Will I have the same problem with Dune HD devices? Does anybody have experience of these with Twonky?