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Are Progressive Scan DVD Players useless for 1080i TVs?

786 Views 7 Replies 6 Participants Last post by Josh Z, May 15, 2006

Billdemart

Discussion Starter · May 11, 2006

I am confused about this whole subject. I've been reading a bunch of different threads about it this morning but can't find the answer I'm looking for.

This guy at another site keeps telling me that Progressive Scan DVD players are only good for Progressive Scan TV's. I have never heard this before.

If the signal from a regular DVD player is 480i going to the tv and a progressive scan DVD player is 480p doesn't that work on a regular old widescreen 1080i set?

I have a Toshiba 65h81 and I've used a Panny RP-56 for years and it looks great but I recently started using my Xbox 360 for a DVD player and I don't really notice a difference in picture.

Thanks in advance!

Bill

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N'Yeti

· #2 · May 11, 2006

Quote:

Originally Posted by Billdemart
...This guy at another site keeps telling me that Progressive Scan DVD players are only good for Progressive Scan TV's. I have never heard this before.

If the signal from a regular DVD player is 480i going to the tv and a progressive scan DVD player is 480p doesn't that work on a regular old widescreen 1080i set?

...

Bill

Some Progressive Scan players have switches to switch between 480p and 480i output. Some require setting changes in their Menus. Strictly speaking, yes, you can't run the player at 480p and expect to see anything on a 480i television. But, switch it to 480i output and you'll view it just fine on your 480i tv.

I'm not aware of any 480p capable players that will refuse to drip to 480i.

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N'Yeti

· #3 · May 11, 2006

Quote:

Originally Posted by Billdemart
If the signal from a regular DVD player is 480i going to the tv and a progressive scan DVD player is 480p doesn't that work on a regular old widescreen 1080i set?

Bill

My mistake, I misread your question. The 480p player will work fine with a 1080i set. It will just play at 480p (not 1080i)...If you get an upscaler, you can get a slightly better picture...but you're still working with the same 480i source material.

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Billdemart

Discussion Starter · #4 · May 11, 2006

So will there be a huge difference in picture using a Progressive Scan DVD player on a 720p TV as comared to a 1080i TV?

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CCarncross

· #5 · May 11, 2006

Quote:

Originally Posted by Billdemart
So will there be a huge difference in picture using a Progressive Scan DVD player on a 720p TV as comared to a 1080i TV?

If the tv's you are referring, always display everything they get fed into 720p for the 720p tv, or 1080i, for the 1080i tv, no other resolutions, then, bottom line, the dvd players that put out the best picture, will most likely provide th best picture to the tv....

YOu need to look at several factors, how good is the scaler in the tv compared to the scaler in the dvd player you could be using...only applies to upscaling players of course..

How good is the de-interlacer in the tv, compared to whats in the player?

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mrgreen4242

· #6 · May 15, 2006

I was wondering the same thing. My CRT HDTV will display 480p natively. So, when comparing a good progressive scan DVD player putting out a 480p signal over component cables and an upconverting DVD player putting out a 1080i signal over an HDMI cable, both from the same 480i source, will it look any better?

Or am I not understanding the 1080i CRT TVs correctly? Are they taking the 480p signal and scaling it 1080i before displaying it? I was inder the impression that CRTs would show a 1080i OR 480p signal without scaling, it was only 720p and 480i that were scaled to 1080i and 420p, respectively.

Thanks for clearing this up for me... I'm pretty happy with my current progressive scan multi-format player, but I'd like to stretch the standard DVD format out another year or 18 months while HD DVD and players drop in price some.

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bigsnyder

· #7 · May 15, 2006

There is really no such thing as a native resolution for CRTs, but some resolutions

are more optimal depending on your display. Most CRT folks find that 1080i gives

them the best results. YMMV

C Snyder

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Josh Z

· #8 · May 15, 2006

Quote:

Originally Posted by mrgreen4242
Or am I not understanding the 1080i CRT TVs correctly? Are they taking the 480p signal and scaling it 1080i before displaying it? I was inder the impression that CRTs would show a 1080i OR 480p signal without scaling, it was only 720p and 480i that were scaled to 1080i and 420p, respectively.

Your understanding is correct for CRT TVs. Fixed-panel digital displays such as DLP or LCD require the input signal to be scaled to the native resolution of the TV, but a CRT will display the signal at the resolution you feed it (other than 480i signals, which are deinterlaced to 480p).*

* Some CRT TVs scale 480i/480p content to 540p.

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