Some media servers, I'm guessing PS-3 Media Server, can transcode unsupported formats into supported ones on the fly. That's especially easy for audio, since DLNA supports PCM streaming, all the server has to do is decode the file and send the resulting data over the network.

Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris