I've recently started to re-encode the audio when making h.264 mp4's of my dvd collection using AC3 Pass through via handbrake. These files (All are Dolby Digital 5.1) play perfectly on my laptop, Dune 101 and Dune Smart B1 but when played on the A-110 I get no sound. My A-110 and 101 are connected directly to a TV (no amp). All audio settings on the A-110 are set to Analogue PCM and HDMI audio is on and output is set to stereo. I've tried different settings but with no joy. I'm using the latest firmware for the PCH. Any help appreciated. Cheers.