Im not familiar with UPnP/DLNA. Is it possible to stream FLAC (24/192) to BDP9700 ?

I have tried to setup my Mac Book with XBMC and add FLAC and m4a files to the music library. I could stream m4a to BDP9700 but no luck with FLAC. If I copied the same FLAC file to a USB flash drive and connect the flash drive to BDP9700's front USB port, it plays with perfect sound.

It will quite a waste of the nice 24/192 DAC and UPnP/DLNA capability of BDP9700 if we couldn't stream FLAC, as FLAC is the only lossless format supported by BDP9700. Thank you.