Please Help Wd-62628 1080i WTF???

You have a 1080p TV only recently have DVI/HDMI receiver chips on 1080p HDTVs start accepting 1080p as an incoming resolution since 1080p/60 is not an ATSC resolution and there were no sources yet of 1080p/24. The video processor in your TV is not upconverting it is de-interlacing the even numbered line fileld and the odd numbered line field in the 1080i content back together again so they can be displayed on your DLP's 1080p display.
You are not loosing any resolution by sending 1080i instead 0f 1080p to the TV. You get better high speed motion content it you could send 1080p.

I believe it's correct, but i don't think you'll really notice much of a difference.

There is not a clear definition of upconverting most users myself included interpret it to mean the same as upscaling which increasein the resoluiton of the content by inventing the additional pixels requeried such as upscaling/up-converting 480i or 480p to 720p or 1080i or 1080p ,or upconverting of 720p to 1080i or 1080p.
When deinterlacing 1080i content to 1080p no invention of additional content occurs it is just converted.
If you are using an upscaling DVD player that only upgrades to 720p then I would expect them to look very poor since your TV is then upscaling the 720p(containing invented content) to 1080p
I know of no solutions to the questions you asked.
I have never heard of a "flux compassitor".
You can learn more about interlacing/de-interlacing and scaling at the following link:

http://www.hdtvprimer.com/ISSUES/what_is_ATSC.html

You need to provide more detail about your friends 1080p system and player and about your player and if you are comparing them playing the same BR DVD.

yes, no, no.

There, you didn't like it, but that's the consensus. There might be some goofball stuff you might manage re #3 (like turning component into Firewire) but I haven't seen anything that would lead me to believe it will end up looking better on that TV than what you have right now.

I would hazard the additional guess that your buddy's 1080p is either not a DLP (no wobulation), much newer than 2005 (better hardware and software processing tricks), or both. Your 2005 is a year newer than our 2004 Mits (720p) DLP, but our new 2009 Mits 1080p DLP just slaughters it --and the difference in native input resolution is only a small part of the story there. I can say that with complete confidence, because most of what we watch on it is actually 1080i, which shouldn't be (while trying to avoid starting any religious arguements here) much different than 720p --yet the 2009 just kills the 2004.

I have one of these Mitsubishi's also....with a big, bright 1080P logo for which I shelled out a lot more money for at the time. I got a Blu-Ray player last night, hooked it up only to have the settings tell me 1080P was not supported ! Have spent this morning reading the many posts and responses. So I guess technically Mits is correct in that it will accept 1080P input thru Firewire.....just not thru HDMI as probably everyone that purchased this TV thought it would do. Anyone else feeling screwed by Mitsubishi ?

Are there any Blu-ray players that connect with firewire ?

Even this year some manufacturters of Full HD 1080p HDTVs are still not using HDMI receiver chips that can receive 1080p since previously the standard HDMI receiver chips only received 480i, 480p, 720p and 1080i since there was no 1080p content available at the time these chips were designed. Your TV does de-interlace the received 1080i content to 1080p using its onboard computer before it displays it.

I just realized I'm in the same boat with my Mitsu WD-62628 purchased 11/7/05 sporting the big 1080P emblem on the lower left corner. Last week I connected my new Pioneer BDP 320 only to discover not compatiable. YES, I feel screwed by Mitsubishi, I paid big $$$ for the TV and thought I was getting a 1080P box, only to find out 5 yrs later it's really not. Probably could call that false advertising!

Bought a Mitsubishi WD62628 in 2006 and damn if it would only display 1080i when blueRay players came out. Went back to the store and they said the same as every one else, " only 1080p through fire wire." and all I could find on line was the same. Well last night my TV was not working and I had to get the book out to fix it, and I came across some very good news. Yes HDMI-1 will only display 1080i, thats it no way around it. But HDMI-2 on the other hand says if you hook a computer up to it "ALL COMPATIBLE VIDEO AND PC SIGNALS WILL BE CONVERTED TO 1080P FOR FINAL DISPLAY." Well I don't have HDMI out on my computer so I took a chance "COMPATIBLE VIDEO" I went to NetCommand setup, erased the HDMI-2 device that I had setup and reset it up as a PC. I then changed the HDMI cable form HDMI-1 to HDMI-2, set the output of the Blueray to 1080/60p and damn if it did not work. Looks awesome!!!!!. got a this is not a pc error on the screen but went away in 5 seconds. To test if this was working I reset the Bluray back to 1080/60i and switched the HDMI Inputs back for 2 to 1. Once I was back on I tried to change the output of the Blueray back to 1080/60p and the screen went blank and would not display 1080/60p. I reset it back to 1080/60i and every thing fine on HDMI-1. (HDMI-1 will only display 1080i max). So set it back to HDMI-2 and output on Blueray to 1080/60p and picture is way better than HDMI-1. Hope this helps. Makes me happy not to have spent $4300.00 on a piece of crap.

No Firewire BlueRay players. There is some encryptions that has to be passed and Firewire will not send this ONLY HDMI.