Author Topic: The High Def Format War  (Read 10453 times)

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copassatguy

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Re: The High Def Format War
« Reply #30 on: January 08, 2008, 08:50:42 PM »
Haha! They call it "Advanced" High Definition. *shakes head* So now we'll have "AHDTV"

What's next Advanced Superior Source High Definition... ASSHDTV... ok maybe stretching it a little but I couldn't help myself  ;D
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MikeWire

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Re: The High Def Format War
« Reply #31 on: January 09, 2008, 09:15:21 PM »
I loved tech TV... hate G4. Only watched it cause they were airing CES 2008...

and yes come join the DARK SIDE  ;)

Right on, there are ramblings of the Blu-Ray working with the XB360.  DARK SIDE!

FWIW if you liked TechTV then check out http://www.revision3.com - Kevin Rose, Leo, Martin etc all jumped over there and have "podcasts" or videos covering all kind of tech topics. 
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Re: The High Def Format War
« Reply #31 on: January 09, 2008, 09:15:21 PM »

copassatguy

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Re: The High Def Format War
« Reply #32 on: January 10, 2008, 01:08:47 AM »
Right on, there are ramblings of the Blu-Ray working with the XB360.  DARK SIDE!

FWIW if you liked TechTV then check out http://www.revision3.com - Kevin Rose, Leo, Martin etc all jumped over there and have "podcasts" or videos covering all kind of tech topics. 

Sweet nice find... if you got a PS3 you would be able to enjoy exclusives on both systems.  ;)
wo things are infinite: the universe and human stupidity; and I'm not sure about the universe. -Albert Einstein

MikeWire

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Re: The High Def Format War
« Reply #33 on: January 10, 2008, 09:16:57 PM »
 :D  The "war" is truly over.  Expect Blu-Ray to take over all (Sony execs rejoyce!) :P

Porn arrives on Blu-Ray - another nail in the HD-DVD coffin

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MikeWire

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Re: The High Def Format War
« Reply #34 on: January 10, 2008, 09:17:26 PM »
darn double post
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ianacole

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Re: The High Def Format War
« Reply #35 on: January 11, 2008, 02:05:20 PM »
:D  The "war" is truly over.  Expect Blu-Ray to take over all (Sony execs rejoyce!) :P

Porn arrives on Blu-Ray - another nail in the HD-DVD coffin



I'm sold!!!!  ;D
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Spicoli

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Re: The High Def Format War
« Reply #36 on: January 11, 2008, 06:46:53 PM »
Now the problem is the current Bluray players won't be able to play the future Bluray discs...

... I have heard that most of the companies are releasing new players here soon though.
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copassatguy

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Re: The High Def Format War
« Reply #37 on: January 12, 2008, 07:11:45 AM »
Now the problem is the current Bluray players won't be able to play the future Bluray discs...

... I have heard that most of the companies are releasing new players here soon though.

That's not entirely true... current players will play the movies just not some of the special features like PIP, but I could care less about hearing why the director shot a scene a particular way while the scene is playing. If you get a PS3 as your Blu-ray player you will be set though because it will be able to play all current and future discs via firmware updates... plus it plays games, has the ability to play music and movies that are streamed from your PC (or Mac) and any pictures as well. Oh and it will also have DVR capabilities in the near future.   
wo things are infinite: the universe and human stupidity; and I'm not sure about the universe. -Albert Einstein

jayryan

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Re: The High Def Format War
« Reply #38 on: January 21, 2008, 02:15:08 PM »
Hey, I've been meaning to post this for a while now: here's a good read on the pro-film  process. If you want a little more of the production side of the process your favorite blockbuster [or not] gets from location to your DVD player. :)

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MikeWire

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Re: The High Def Format War
« Reply #39 on: February 11, 2008, 07:53:44 PM »
I just got a notice from Netflix telling me that they were only going to support Blu-Ray...

Guess I'm going to go get a PS3!
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evil_O

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Re: The High Def Format War
« Reply #40 on: February 12, 2008, 10:34:12 PM »
Yep.  We have netflix and like it so far.  We have the blueray default set when selecting our movies.  I think you will like the PS3 :D
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copassatguy

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Re: The High Def Format War
« Reply #41 on: February 19, 2008, 03:20:32 PM »
wo things are infinite: the universe and human stupidity; and I'm not sure about the universe. -Albert Einstein

jayryan

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Re: The High Def Format War
« Reply #42 on: February 29, 2008, 02:22:51 PM »
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jayryan

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Re: The High Def Format War
« Reply #43 on: March 06, 2008, 08:29:33 PM »
If you're an uber-techy like myself you'll dig some of this:

What’s in a Pixel? Taken from Tapeless Workflow, Real Resolution, and Rolling Out D-Cinema

Canon’s Larry Thorpe and Panavision’s John Galt made an effective tag team on the subject of digital cinema resolution — and why current ideas about the “resolution” of any given camera are at best sketchy and at worst misleading. Thorpe kicked off the session by noting that, while “pixels are synonymous with resolution,” it’s a mistake to think that you can measure a camera’s resolution by simply counting the number of pixels it outputs.

“More pixels do not necessarily create more resolution,” declared Galt, “but can harm overall image performance.” To explain, he recalled "a big argument with Japan" from his tenure as project leader on the group that developed the Panavision Genesis. “I argued vociferously for 1920x1080 RGB,” Galt said. “They were keen on building a 4K camera — which would have been one of the UHD 3840x2160 versions [proposed by NHK]. The main reason we didn’t do that is the pixel would get so small we’d lose two stops of sensitivity and two stops of dynamic range.” That’s because the size of individual pixels on a 35mm imager determines those stats — bigger is better because bigger photosensors can capture more light.

Galt then mounted an argument for MTF (modulation transfer function) — cascaded across all components in an imaging system — as the single best measurement of “system resolution.” Determining the resolution of a film-based system, for instance, would require accounting for the MTF of a camera’s lens, the film negative, the interpositive, the internegative, the print, and the lens in the projector. The weakest link in that chain can have a dramatic detrimental effect on the final quality of an image. “Even if each of those parameters has a 90 percent MTF, the final system is only 53. If each parameter is 90 percent except for one parameter that is 60, the final will be 35 percent.

“We have fallen into this trap of defining cameras in the context of 1K, 2K, 4K or megapixels,” Galt continued. “It’s only one parameter. The system MTF measurement is the only way to characterize a complete system. If the MTF is less than 35 or 40 percent, the image is going to be out of focus.”

A working knowledge of MTF factors in a given system can lead to some important conclusions, Galt said. For instance, he estimated that a “good Nikkor lens” has an MTF of only about 30 percent at 4K resolution. “If you’re scanning film at 4K — unless you have extraordinary scanning optics — you’re wasting money,” he said.

Thorpe said camera design involves a “fundamental compromise between MTF, sharpness and aliasing,” but noted that much of the pertinent information about a camera’s resolution — the designers’ use of optical or electrical low-pass filters to tweak the captured image or the sensor’s “fill factor” (the percentage of an imaging pixel that is actually light-sensitive rather than taken up by circuitry) — is rarely published by manufacturers. He recommended the “MTF profile” as an important camera metric, suggesting that four MTF measurements be taken, at 200, 400, 600, and 800 lines of resolution, to create an accurate profile of a given camera.
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