After having both the RP91 and the Denon 1600, IMO the Denon puts out the better picture on my Panasonic 16:9. I have read that the 1600 has the superior MPEG decoder of the rp91 and the better de-interlacing chip of the rp62/82. My Yamaha DVD c920 also uses the same MPEG decoder/de-interlacing chip and is a 5 disc changer with DVD-Audio and my desire for a changer is the reason i kept the Yamaha. Picture quality was exactly the same between the Yamaha and the Denon(it should be noted that both are made by Panasonic). The 1600 and 920 both use Burr Brown dacs also and are great cd players. The Denon also offers rudimentary bass mgmnt. for DVD-Audio(100hz x-over). I would choose the 1600 over the RP91. That's just my opinion. Best of luck with your decision.