DVD-Video explained
   
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DVD-Video explained
 
The DVD-Video format has revolutionized the home entertainment industry by offering image and sound quality far superior to that of VHS videotape. This impressive digital format can generate pictures in amazing detail using nearly 500 lines of horizontal resolution! And, it's capable of delivering six discrete channels of exhilarating audio to create the ultimate surround sound experience. The DVD-Video format also allows for an incredible amount of data to be stored on a single disc: up to 17 gigabytes worth! As one of its founding partners, we've developed many of the technologies responsible for making DVD-Video possible.

The DVD-Video format
Do you remember your amazement when you listened to your first compact disc? Pristine clarity, virtually no background noise and a sound that was truer to life. The improvement was astounding. Today, many people are experiencing a similar revelation with DVD-Video as it offers both breathtaking picture quality and stunning sound.

Thanks to almost 500 lines of horizontal resolution, you'll immediately appreciate the startling brilliance and clarity of the picture quality delivered in the DVD-Video format—nearly twice that of standard VHS tapes! And because DVD-Video uses a laser pick-up system, nothing touches the disc's playing surface. So it won't wear out. Of course, you don't rewind a disc, which makes it even more durable.

NOTE: Picture resolution depends on TV monitor and software content.

When you watch a film in a movie theater, half of the thrill is the theater's digital surround sound system, which makes you feel as if you are in the movie. DVD-Video, with its six discrete channels of audio, enables you to enjoy the same experience in your own home.

surround soundOur DVD-Video players are compatible with whatever aspect ratios are encoded on the DVD-Video disc you're watching. You can play movies recorded in a 4:3 format (conventional TV proportions), or in letterbox, which presents an image for panoramic viewing on a conventional TV. If you own one of the latest 16:9 widescreen TVs, you can select the widescreen format for maximum impact.
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How Panasonic makes DVD-Video possibleCD DVD
Much like a CD player, a DVD-Video player uses a laser to translate the microscopic pits that are in the disc, into music, video or information. But that's where the similarity ends. A DVD-Video disc holds much more information than a standard CD. Engineers increased its data-storage capacity by shrinking the microscopic pits and placing them closer together. However, the standard CD laser could not read this tightly packed information. A unique laser, with a thinner beam and shorter wavelength (developed by our parent company, Matsushita Electric Industrial Co., Ltd.) was the perfect solution.

1500 CDsTheoretically, the most efficient method to put more information onto a disc was to construct a disc with two layers of information. We developed UV bonding technology, to make it a reality. A dual-layer disc stores an astounding 8.5 gigabytes of information, while a dual-layer, double sided DVD-Video disc can store as much information as roughly 12,000 floppy discs, which would create a pile 120 feet high. That's 17 gigabytes worth of information!

Panasonic DVD-Video players also play CDs. In order to make this possible, we developed a dual-focus hologram lens that splits the beam of the already super-fine laser so that it can read two different depth levels, one for DVD-Video and one for CD or Video CD.
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