Saturday, September 28, 2013

How does Blu-ray player upconverting work?

blu ray player for best results
 on best sellers the new york times best sellers children s books ...
blu ray player for best results image



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.

How to set up analog cables with blu ray?




John


My amp only takes analog cable input, and I watch movies with headphones plugged into that amp. Now, what will give me better sound? Running analog directly from the blu ray player to the amp, or running the analog from my hdtv to the amp? Will the hdtv act like a converter, making the hdmi's digital signal into an analog signal? Which of these will give me better results? I'm just a teenager, I'm not a scientist, so I'm lost on this, lol. Thanks.


Answer
You've asked this same question 3 times. I already answered it for you.

Kevin




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