i bought the samsung HD931 that is capable of playing movies in 720p and 1080i. i hooked it up to my samsung 1080i HDTV with the DVI cable you NEED to get this signal and what happens? the screen starts fluctuating colors. i call samsung and they say they seem to be having a problem with the digital signal and copy-protectin on dvds. back to the store it goes and i get a toshiba w/480p instead. the picture looks just as good and i saved $300.