Hi, I'm considering buying a low-end PC to playback FLACs from E-Tree. Which is better output from a pc HDMI or Optical? My Pioneer receiver has both and it has a D>A converter. Lower cost options are all i can do for now. I'm using a mac mini for itunes using the display port out to HDMI and it sounds fine. Obviously not an audiofile here but still love the music tapers record. Thanks