Hi Owen, I'd suggest to upgrade the firmware to the latest and try all again. Personally I also agreed with u tat the image sharpness is inferior when I'm comparing it with Dvico. I use PS Audio power cord and it does improve the image sharpness significantly over a 92" white screen. Hope it helps..

If your Dune D1 was connected to internet, it can auto check for the latest version firmware. Else, you can always download the latest version from http://dune-hd.com/firmware/hdsmart_d1/

Copy the latest firmware to USB drive root and upgrade from there..

WOW.. you really need step by step guide..

3. Sources -> USB Storage -> Downloaded firmware
4. Press ENTER
5. Select 'Upgrade' and press ENTER

If you're not interested with the BETA, then just choose the latest non BETA which's Version "110606_1315_update1" (the latest stable version)

Version "110923_1710" apparently also a stable version but it wasn't released for D1. If you want to know, the 1st 6 digit represent the firmwareware release date.

I think it's better for you to specify what camera that you use to take the video as different camera do have their audio codec(usually aac format) and usually computer won't have problem to playback the audio from your MOV video taken using camera as the codec was installed.

Your setup is important too as sifus can try to assist based on your setup. I mean if your Done D1 connected directly to TV or AVR. It could be your audio output setting or capability of your AVR or TV