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A Description of the
Technology: DVD (digital
versatile disc) represents a revolution in digital media. It is the most
sophisticated, highest quality audio and video and data format available
today. It offers capacity and quality far surpassing video CD-ROM, laser
disc or CD. With MPEG video, greater data storage and speed than CD-ROM,
and more flexibility than CD-XA or enhanced CD (CD-EXTRA). DVD is the next
generation of five-inch digital optical disc technology and sets a new
standard for consumer video and data storage.
Along with broadcast-quality video and state-of-the-art multi-channel
audio, DVD offers the capability for soundtracks in multiple languages,
closed captioning and subtitling in multiple languages, viewing from
multiple camera angles, viewing multiple versions of a program, parental
control sensitive programming and interactive menu-driven navigation
of a program, all with a potential capacity of 17 gigabytes on a single
disc. The possibilities are phenomenal.
AVS is pleased to be one of the leaders in DVD production. AVS has been
manufacturing superior quality prerecorded media for the entertainment and
corporate communities. We are one of the leading manufacturers in the
United States, having built our reputation on quality, service, fast turnaround, flexibility and value. We are committed to helping
fulfill the potential of DVD.
AVS addresses the reproduction, packaging and dissemination needs of corporations relating to audio, video and CD based products. As your
partner in media solutions, AVS can help you get the most out of DVD
technology.
Capacity: Incredible
capacity is one of the principal benefits of DVD technology. Unlike the
lasers used for CD or CD-ROM, DVDs use a laser that emits light in a
shorter wavelength. This "thinner" beam can read smaller pits
which means more data can be packed on a disc.
A DVD can also have multiple data layers (potentially up to four) and use
both sides of the disc. This is the result of a bonding process that seals
two '½ thickness 0.6 mm discs back to back to create what looks like a
"regular" CD. A single-layer has the capacity of 4.7 gigabytes.
A second layer will boost the storage capacity to 8.5 gigabytes for one
side. The second layer is separated from the first by half the width of a
human hair, with the laser reading the first layer and then passing
through a semi-transparent coating to play the second layer. Therefore, a
double-sided, double-layered DVD will have a capacity of 17 gigabytes.
This compares to 0.65 gigabytes for a "regular" CD-ROM.
Consider that:
A single-sided, single-layered DVD:
- will store as much music as seven
CDs (nine hours of music)
- Has seven times the capacity of a
CD-ROM.
- Is the equivalent of 3,400
computer floppy disks.
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A double-sided, double-layered DVD can
store:
- All three Godfather movies
- All the original Beatles and John
Lennon albums combined
- A stack of novels taller than the
Empire State Building
- Most movies up to 135 minutes with
multiple audio and subtitled tracks will fit on one DVD.
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| CD
= |
0.7
Gbytes |
| DVD
- 5 = |
4.7
Gbytes (1 Side, 1 Layer) |
| DVD
- 9 = |
8.5
Gbytes (1 Side, 2 Layers) |
| DVD
- 10 = |
9.4
Gbytes (2 Sides, 1 Layer) |
| DVD
- 18 = |
17.0
Gbytes (2 Sides, 2 Layers) |
| DVD
- R = |
4.7
Gbytes per side |
| DVD
- RAM = |
2.6
Gbytes per side |
Quality:
DVD video is distinguished by superior viewing quality, significantly
better than VHS or laser disc.
Picture quality: Is marked by
nearly 500 lines of horizontal resolution which is twice the resolution of
a conventional videotape and almost 20 percent better than a laser disc.
Audio quality: Is enhanced by Dolby
Digal AC-3 encoding, which allows for the storage of much more CD-quality
audio in much less space than traditional audio CD. There are six
discrete, digitally seperated channels for theatre-like surround sound. It
offers the same soundtracks optimized for mono, stereo, of Dolby Pro Logic
reproduction.
Multimedia benefits: DVD-ROM offers
smooth, real-time MPEG-2 compressed video and discrete multi-channel
surround sound for computer multi-media applications. This replaces the
grainy, jerky snippets of video currently experienced when stretching the
capacity limits of conventional CD-ROM. Software created for DVD-ROM will
offer new levels of interactivity through increased data capacity and
retrieval speed. MPEG-2 is a more powerful and faster video process than
MPEG-1. MPEG-2 is a type of video compression system that conserves storage
space by scanning successive frames and pixels within a frame for
repetitious information, discarding data not needed. Only information that
changes from pixel to pixel or frame to frame is re-encoded digitally.
DVD players: A DVD player is a
(television) set top device designed to play video titles such as movies,
music videos and instructional videos; it offers high quality video and
audio with limited interactive capabilities. A DVD-ROM drive for computers
offers similar capabilities with additional complex features, including
interactivity. A DVD audio player is yet to be defined, but will offer
higher quality audio than a traditional CD. Backward compatibility is
being, incorporated in the development of DVD players. Most all DVD
players will offer the ability to play standard audio CDs and some will
play video CDs. Combi-players are being manufactured that will play DVDs,
audio CDs and laser discs.
AVS set for the future with DVD: DVD
production facilities are state-of-the-art, the most advanced in the
industry, including fully computerized quality and mastering control
centers. Our product and service offering includes:
- Replication
- Packaging and package design
- Project management
- Database management
- Warehousing
- Distribution.
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