Fair enough. Ok, that clears a few things up. I was aware that the SDI signal is not the same as the signal carried by an HDMI cable, hence my mention of looking for an SDI > HDMI "converter" and not an adapter cable, which would accomplish nothing.
It all leads back to two things:
1) trying it out and comparing the two. There may be a difference between the Reon in the HC7000 and the ABT in the DVDO VP50 and in fact many people say there is. There are things that each do a little better than the other. I just wonder if there is enough difference that I should keep the DVDO VP50. It is a source switch and allows for great de-interlacing of so much more than just DVD, and has other useful features. In fact, it supposedly does an amazing job with 1080i HDTV? I can't recall what each chip does better than the other, but again, I'll have to decide whether I test and compare them myself, hopefully asking for people to give me examples of material that I can use to look for the differences.
2) The other point is that, even if I find the Reon in pj is good enough for me in itself, I would want to feed it an SDI signal from a dvd player. The trouble will be finding an SDI > HDMI converter that is good enough to preserve the benefits of SDI into the projector (rather than using component or HDMI from a dvd player) and whether I can obtain one of these for a reasonable enough cost to justify selling the SDI equipped VP50. If I only "save" $300 or $400, it's hardly worth it to lose the switching, de-interlacing of other sources and the other features. Like I mentioned earlier, the least expensive SDI to HDMI converter may in fact by a used VP30 or even an iScan HD or HD+. Can you recall if there are issues with DVI to HDMI?
Guess I'll have to price the VP50 with an SDI to see what mine is worth, and keep my eye's out for an SDI > HDMI converter. I guess in the end, I could be comparing an HDMI dvd player with faroudja (testing both 480i and 480p output) the component output of a Panasonic DVD player, my Sony Blu-Ray S350 for dvd's outputting HDMI and lastly the SDI dvd player into the HDMI of the projector using a converter. Who knows, maybe I will find that the VP50 has it's benefits, but sell it anyways and get a VP50 Pro or other future DVDO model later when I can afford it.
Here are a couple of examples of SDI > HDMI converters I could try:
BLACK MAGIC (scroll down to SDI to HDMI)http://www.blackmagic-design.com/pro...iniconverters/
I am hoping that 480i over HDMI without HDCP should be ok into the Mits HC7000's HDMI input. Perhaps I'll look into that.