thats a misunderstanding. HDMI 1080, whether 60i, 60P, or 24P, is mapped pixel perfect by the RS1. This has been reported by GR and others, and I have seen the same concerning 1080i on the RS1 from my Accupel signal generator. No apparent scaling is done by the RS1 when it receives 1080 of any flavor.
When the RS1 receives 1080i, it does do deinterlacing, though. If the source is BR or HDDVD, the deinterlacing of film based sources is easy to do perfectly. That's because the video is encoded at 1080 24P on the disks and is interlaced by the players prior to output. The interlace flagging should be perfect because there is no editing going on and thus the deinterlacing in the RS1 should be able to recreate the original progressive signal without error. It is a simple matter of reading the flags to reassemble the original progressive frames. Many have reported that the RS1 does perform as expected and if so I would be at a loss to explain any difference between 1080i 60 and 1080P 60.
I have a VP50 coming for evaluation in about a week so I will be able to check this for myself at that time. What I am most interested in seeing is its performance with a 1080P 24 hz signal to eliminate 3:2 judder, and to see if the VP50 can do a noticably better job scaling 480i.
For whatever reason, the 480i scaling on the RS1 creates high EE and ringing on test patterns and is one of the poorer performers I have seen in this test. Though the RS1 does a state of the art job of deinterlacing 480i, its 480 scaling appears inferior to many older DVD players who are equiped with less powerful processing chips. I am still trying to tell if the problem is big enough to be visible in actual video though.
For the time being I am using a Toshiba HDA1 to do the upconversion of DVDs to 1080i because on test patterns it shows less EE and no ringing.
Originally Posted by JimmyR
"think outputting 1080p/60 is a better way?"
You bet and you should be able to see the difference. 1080p gives you native 1:1 pixel maping and pretty much bypasses the RS1's internal scaler. Much sharper, cleaner image than 1080i into the RS1.