Progressive vs Interlaced

[jspaf]

Sorry if this is an old topic or an ignorant question, but...I have a Denon dvd-2200 conected through an AVR-3300 receiver to a Sony GWIII. The picture on dvd's is better when I set the dvd to "interlaced" output vs. progressive. Isn't this defeating the purpose of a progressive scan player?

 

[MDS]

The resolution of the GWIII is much greater than the resolution of a DVD and the tv must scale the image to its native resolution. If the picture is better using interlaced, then I would say that the tv does a better job of scaling 480i and then deinterlacing it than it does scaling 480p.

 

[Vancouver]

would that mean that the best possible picture he can get on his TV would be 1080i

 

[MDS]

The GWIII resolution is 1366 x 768. Regardless of the source resolution, the image will always be scaled to 1366 x 768 (768p). Its just a question of whether the tv does a better job starting with an interlaced signal or a progressive signal; in his case it sounds like the tv does a better job when starting with an interlaced signal.

 

[Engine Joe]

another wrinkle...

I have a multi-region DVD player which I use - by and large - for PAL DVDs. Occasionally, though, I do use it for Region 1 NTSC discs. It has an interlaced/progressive option.

When I set it to progressive, however, the image on the screen reverts to 4:3 instead of 16:9. The DVD player's settings stays at 16:9 TV. But the image on my HDTV is only 16:9 when I use interlaced. Why would this happen? This happens, by the way, with both Region 1 NTSC as well as international regions and video standards, so I don't think that's the issue.

NOTE: I have another pro-scan DVD player (Panasonic), and it works fine interlaced or progressive with my TV. So I'm hoping that it comes down to some setting I'm not thinking of that will allow me to view proscan video at 16:9...

Any thoughts? Thanks!!!

 

[Audioholics]

There are at least two things happening: deinterlacing and scaling.

Anytime you feed a display interlaced (480i) signal - the display is doing the deinterlacing.

Anytime you send it progressive signal (480p/720p) the DVD player is doing the deinterlacing.

The TV will then always scale the image to whatever it needs to properly display the picture.

As a result, you generally have to try both (480i/480p) to see which deinterlacer is doing a better job. Look for moving curved lines and such and check for "jaggies". For instance, if you have a $50 DVD player, it's likely the TV will do a better job of deinterlacing. After this you can then check to see if the display likes 480p, 720p or 1080i better... check them all, and every display is different.

Article on this coming soon...

 

[Rex]

I have a multi-region DVD player which I use - by and large - for PAL DVDs. Occasionally, though, I do use it for Region 1 NTSC discs. It has an interlaced/progressive option.

When I set it to progressive, however, the image on the screen reverts to 4:3 instead of 16:9. The DVD player's settings stays at 16:9 TV. But the image on my HDTV is only 16:9 when I use interlaced. Why would this happen? This happens, by the way, with both Region 1 NTSC as well as international regions and video standards, so I don't think that's the issue.

NOTE: I have another pro-scan DVD player (Panasonic), and it works fine interlaced or progressive with my TV. So I'm hoping that it comes down to some setting I'm not thinking of that will allow me to view proscan video at 16:9...

Any thoughts? Thanks!!!

What Multi-Region Player do you have? I Play PAL DVD's as well and am looking for a decent player.

 

[Engine Joe]

What Multi-Region Player do you have?

It's a Malata - I am blanking on the model number right now. I will say that I'm overall very happy with the unit; I think it puts out a sharper image than the other DVD players I've used with my TV (including the new-ish Toshiba HDMI upscaling model).

My only current complaint is the one I mentioned above. Can't figure out what's going on there.