blu ray player 720p hdtv image
angel_girl
My friend says that when she plays a movie on her blu-ray player, she gets a 1080p picture, even though her tv is only 720p. Is this possible?
Answer
No.
All HDTV's convert the input video signal to the resolution inside the TV.
This means your friends BluRay player is out-putting 1080 but the TV then down-converts the video to 720 for processing and display.
Same way if you feed the HDTV a standard def DVD which is 480. The TV will up-convert the video to 720.
No.
All HDTV's convert the input video signal to the resolution inside the TV.
This means your friends BluRay player is out-putting 1080 but the TV then down-converts the video to 720 for processing and display.
Same way if you feed the HDTV a standard def DVD which is 480. The TV will up-convert the video to 720.
How does Blu-ray player upconverting work?
Darkman
i saw a few Blu-ray players in the store today that said:
Upconverts DVDs to 1080p
Well, if I buy a blu-ray player and it upconverts my old dvds to 1080p, why would I every buy the higher priced blu-ray discs???
Do blu-ray discs go beyond 1080p???
man, sometimes this stuff is confusing.
Answer
It is confusing, and the ads don't help since they MAY not lie, but can be misleading to consumers.
First point .. Blu-ray is native 1920x1080p ... the same as the maximum resolution consumer HDTVs (so called "True HD" ... a misnomer since 720p is also HD).
Now, why buy higher priced Blu-ray disks and not just watch DVDs?
It might help to consider that a DVD is native 720x480 pixels (NTSC). To upconvert that to fit a "True HD" 1920x1080 pixel display, the number of distinct dots (each defined as a specific colour) has to be increased by 2.25x vertically and 2.67x horizontally. Upconversion, processes the information in adjacent dots in the original image to fill in the dots on the higher resolution display (or in even more sophisticated processors even incorporate information from adjacent frames). The quality of the result is dependent on the sophistication of the video processing ... done well the result is a noticeable improvement on the original, but done poorly and the result can be worse. In all cases the DVD image is technically now a 1920x1080 pixel image, BUT no matter how well processed it can't ever provide as detailed an image as a native Blu-ray image. You can't get something from nothing.
The question for most consumers is whether a Blu-ray disk is worth the premium cost relative to DVD. The answer is unfortunately not easy since all sorts of variables are involved.
For example, are you watching on a 720p or 1080p display? If the former, well upconverted DVDs will look quite close to a Blu-ray movie downsampled to 720p. Or, is the Blu-ray disk a good remaster of the original high quality film, or simply a Blu-ray reissue of the original DVD master (in which case it may be little better than the DVD at best). Or, is the screen large enough and are you watching close enough to be able to appreciate the increased detail in a Blu-ray disk. Finally, is it worth a premium price to watch a drama or comedy where the visual detail isn't that important (vs a visual spectacle type Sci-Fi movie for example)
So, the long answer to your question is Blu-ray is, and will remain, more expensive than DVD. Blu-ray will always provide at least some improvement visually and audio wise over DVD. Whether it's worth the extra cost for Blu-ray then becomes a personal decision on a benefit-cost basis.
In general many consumers have concluded that at current price differentials DVD is good enough, but as the price difference decreases this may change. My recommendation is to evaluate for yourself based on your equipment and viewing conditions by comparing several movies on both Blu-ray and DVD ... then act accordingly.
Hope that helps.
It is confusing, and the ads don't help since they MAY not lie, but can be misleading to consumers.
First point .. Blu-ray is native 1920x1080p ... the same as the maximum resolution consumer HDTVs (so called "True HD" ... a misnomer since 720p is also HD).
Now, why buy higher priced Blu-ray disks and not just watch DVDs?
It might help to consider that a DVD is native 720x480 pixels (NTSC). To upconvert that to fit a "True HD" 1920x1080 pixel display, the number of distinct dots (each defined as a specific colour) has to be increased by 2.25x vertically and 2.67x horizontally. Upconversion, processes the information in adjacent dots in the original image to fill in the dots on the higher resolution display (or in even more sophisticated processors even incorporate information from adjacent frames). The quality of the result is dependent on the sophistication of the video processing ... done well the result is a noticeable improvement on the original, but done poorly and the result can be worse. In all cases the DVD image is technically now a 1920x1080 pixel image, BUT no matter how well processed it can't ever provide as detailed an image as a native Blu-ray image. You can't get something from nothing.
The question for most consumers is whether a Blu-ray disk is worth the premium cost relative to DVD. The answer is unfortunately not easy since all sorts of variables are involved.
For example, are you watching on a 720p or 1080p display? If the former, well upconverted DVDs will look quite close to a Blu-ray movie downsampled to 720p. Or, is the Blu-ray disk a good remaster of the original high quality film, or simply a Blu-ray reissue of the original DVD master (in which case it may be little better than the DVD at best). Or, is the screen large enough and are you watching close enough to be able to appreciate the increased detail in a Blu-ray disk. Finally, is it worth a premium price to watch a drama or comedy where the visual detail isn't that important (vs a visual spectacle type Sci-Fi movie for example)
So, the long answer to your question is Blu-ray is, and will remain, more expensive than DVD. Blu-ray will always provide at least some improvement visually and audio wise over DVD. Whether it's worth the extra cost for Blu-ray then becomes a personal decision on a benefit-cost basis.
In general many consumers have concluded that at current price differentials DVD is good enough, but as the price difference decreases this may change. My recommendation is to evaluate for yourself based on your equipment and viewing conditions by comparing several movies on both Blu-ray and DVD ... then act accordingly.
Hope that helps.
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Title Post: Is is possible to get a 1080p picture from a 1080p blu-ray player that's connected to a 720p tv?
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