I was thinking about this the other day. Is the digital output from say a sony and a panasonic DVD player identical? The reason i ask is that if the audio is stored on the DVD it is as digital data. The laser head picks this up and converts it to a video image and a digital audio image. I can see that there might be a difference in sound quality using onboard decoding but surely the 'raw' digital signal will be the same. Therefore the sound output from 2 DVD players should be the same. I realise that its different with a CD player as there is some decoding going on. This is just me thinking it through without any specific tech knowledge, would be interested in anyones views.