axept

Hello,

I have a DM500HD and I'm new to surroundsystems and have some question for you guys.

1: In the sound menu there is an option "AC3/DTS downmix", this can be on or off. What is this? Should this be on or off? I really can't hear any difference.

2: In the same menu a few channels is listed with AC3 soundtrack and many with MPEG. Is AC3 soundtrack surround? I mean, I can hear difference between those. I suppose AC3 is better. On MPEG I dont get sound in my surroundspeakers, only front.

3: Is it possible to make the Dreambox select the AC3 soundtrack automatically?

I have the dreambox connected to my surround reciever with HDMI (Of course) but not the digital sound output (Optical?).