I have two separate systems in my home, one upstairs on down. I have a Yamaha 7040 running my upstairs and a new Marantz 6009 downstairs. I play music off my router/PC through both systems but the Marantz will not play the WMA lossless files while the Yamaha will. Yamaha is on WIFI, Marantz cat5e. Both claim to play WMA files. Any suggestions? I play WAV files on both systems with no problems but downloading everything in WAV is eating up my hard drive. thanks