Hi . I have an issue with my theater system . Everything is sony , a ht-c8oodp+ sony 32 in flat screen . When I play the T,V. play the Xbox on it the sound is great no problems . When I play a dvd , brand new one the sounds start coming on . If you turn it up and place the bass higher then the noise gets worse. Everything is hooked on to a power bar maybe its the cable does it matter which ones you use . Friend told me that you should the green blue yellow connections not red white yellow types , I hope that helps . If some could pass on their expertice it would be nice . Thanks