this is going to make me sound a bit of a thicko but my m8 has just brought a samsung dvd player and he asked me how to connect it up to get surround sound i said i think you need to get a amp as this is what i use. he said that it has dts and pro logic on the front and seem's to think that if you connect the speakers to the rear then he will get surround sound out . he only has a optical output and i think 2 plugs for front left and right .so i dont see how this could be achieved apart from running a optical connection to a surround amp but i am not expert .the dvd player did not come with surround speaker's so unless the amp is built in i would say that there was no way that anything other than a decoded signal would be comeing from the optical output which would then need to be amplified by a pro logic amp not sure as to the model number but he paid £125 squid for it at index any experts wish to enlighten me please..