If you can set your DVD player to 480i, then do it, which means you will be using your DVD player as a transport and let the QDEO chip on the 103 for processing, much like an external video processor. So far my experience of playing DVD disc on my 105 has been very positive, comparable to my standalone video processor, which cost more than the 105 just 3 years ago. Of course digital technology continues to advance.