Hi Peeps, okay I have a yamaha Dolby Digital/DTS receiver, I have all my device players going into the receiver with HDMI cables and the receiver going out to the TV with an HDMI cable. When my receiver is receiving a Dolby Digital signal it displays Dolby Digital on the LCD on the front panel so I know what the feed is. But when I am playing a movie with Dolby digital, I can't get the rear surround speakers to work with the background sound. Everything is just through the front speakers unless i go to the 7 Channel music mode, then I get it in all speakers but thats voices and everything not just back ground noise. I have tried every setting but I cant get the true surround effect. If I play a Blue ray DVD or regular DVD through the BlueRay player the Surround works but then it's not showing Dolby Digital it shows the PLIIX Movie. Should it not be showing Dolby Digital for both types of DVD's. I'm sure I had this working, don't know when it stopped, i have had this system for years. Maybe I'm getting to old and losing it... You can get just the background sounds on you back speakers in DD just like the old Dolby surround right ??