It's the one that supposedly converts a standard DVD to a "high definition quality" picture. Anways, I need to know what computer DVD burners and blank DVD media play well on that Samsung DVD player. All I know is that this Samsung only reads DVD-R, but I need to purchase a burner for my computer and I want to make sure the DVDs I make on this burner will play on the Samsung HD931. Thanks in advance!! ps- apologies if this is slightly O.T., I wasn't sure where to post it.