Sony announces line of Digital Media Port accessories {Engadget HD}

Nov 19th 2007 11:32PM I was wondering whether the $100 TDM-IP1 iPod dock is worth it for getting digital sound; Can anybody assist me to know whether I should stick to Apple's IPOD dock connector with composite A/V cables to hear good sound. I have a SONY DVD HOME THEATER SYSTEM MODEL DAV-DZ850KW & BRAVIA TV; Is there any difference in sound quality using either.