One forum doesn't really cover this so i'll post here. I've got a Sony HQ100,we all know that whilst watching DVD's there is a small lip sync problem. Sony have supplied a DVD-NS955 DVD player & a HT-DDW869 surround system. The DVD player has an "AV alignment" setting that can induce a delay of upto 100ms. However this delay only works if the following are set- Dolby Digital set to D-PCM,MPEG set to PCM & DTS set to D-PCM. If i set Dolby Digital to Dolby Digital, MPEG to MPEG & DTS to DTS is sounds MUCH better(surround effect is greater-seems to be more sounds too) BUT i then get the small lip sync problem. If i set the player to the settings with the delay i get no lip sync issues but seem to lack the surroubnd sound? Can someone explain what is going on in lay mans terms?? I guess it's all down to the digital processors. Does this mean i can't have the better sounding option AND no lip sync issues?? Thanks ps,what do all these settings actually mean??!!