I'm trying to decide between these two: the deciding factor may be whether the RP56 can rescale non-anamorphically enhanced letterboxed material for Widescreen displays that lock into "FULL" mode when fed a progressive scan signal. I know that the RP91 can do this but I can't find a definite "yes" or "no" for the RP56. (I'll probably go with the RP91 but the RP56's Faroudja chip looks tempting...........IF it does the rescaling.) Any help would be greatly appreciated! Thanks.