Blu-Ray Set To Take The World By Storm!
by: Paul Colbert
The Blu-ray Disc belongs to a new generation of optical discs capable of staging high density data. Blu-Ray technology is based on a blue-violet coloured laser. The blue laser operates at a wave length of 405 nm, while older technology such as DVDs and CDs are based on red and infrared lasers that works at 650 and 780 nm. Since the wave length is shorter with a blue laser, the new Blu-ray technology makes is possible to store much more information
The advantage with the Blu-ray technology is that the laser beam can be focused much more tightly at the surface of the disc. Tight focus means that a smaller spot will be produced on the surface on the disc, and when the spots become smaller there will naturally be room for more information on each disc. The minimum spot size of any laser depends on a naturally accruing phenomenon called diffraction. The narrow beam of light sent out from a laser will always diverge into a wider beam eventually, due to the natural diffraction of waves. Diffraction will also occur the waves meet an obstruction. By reducing the wavelength of a laser, we can affect the diffraction.
In Blu-ray technology, the diffractions is also affected by the fact that the lens used to focus the light has a higher numerical aperture than the lenses found in ordinary DVDs - 0.85 instead of 0.6. Blu-ray technology based appliances are also equipped with a dual-lens system of supreme quality, and the cover layer has been made thinner in order to prevent unwanted optical effects. All this makes it possible for a Blu-ray laser to focus on much smaller spots. The optical improvements are accompanied with a new method for encoding data which makes it possible to store even more data on the Blu-ray disc.
The standard for Blu-ray technology has been developed as a joint venture between several major manufacturers of PCs and consumer electronics, including Sony and Philips. The group is called the Blu-ray Disc Association (BDA). The first Blu-ray recorder was launched in Japan in 2003, by Sony. Today, Samsung, JVC, Matsushita (Panasonic) and LG Electronics are all examples of companies using Blu-ray technology in their products. Hewlett Packard has announced that they will release desktop PCs equipped with Blu-ray technology in late 2005.
The main competitor for the Blu-ray technology is the HD DVD format which is also capable of storing more information than a normal DVD. The Blu-ray technology does however allow for more information per layer than the HD DVD format ? 25 GB compared to 15 GB. The Blu-ray technology will on the other hand most likely be more expensive to support, at least initially, which can make the HD DVD a tempting alternative. In a Blu-ray disc, the data is stored extremely close to the surface. This made the first Blu-ray discs extremely vulnerable to scratching and many users preferred the tougher HD DVD discs. Since 2004, all Blu-ray discs are coated with a clear polymer called ?Durabis? which makes them much more durable. According to the developers of Durabis, the TDK Corporation, a coated Blu-ray disc will work even after being attacked with a screwdriver.
About The Author
Paul Colbert of http://www.blu-ray-world.com is an author of various articles relating to new technology and innovations. All content may be used freely but may not be altered in anyway without prior written consent by webcashflow LLC and a link back to Blu-Ray-World.com must be given.
|
Jack The DVDRipper Comes Back To The 21st Century
Jack The DVDRipper Comes Back To The 21st Century
by: Ted Peterson
Don?t worry! It?s not about killing; it?s about converting ?
Still, if you want to be a ripper, do it for a good purpose! For you, for your friends, for your computer, for your free time and - who knows - even for me!
As a matter of fact, I?m not talking about crime at all! That is, if you don?t have a strange fetish with DVDs. Though, if you have one, don?t worry, this DVD ripper is not that ruthless. You can only use it in order to convert audio or video data, to transfer what you have on your DVD to your hard disk, to make a digital copy of a DVD file format.
If you don?t trust share programs, if you have a low download speed and it would be easier to knock your friend?s next door than wait for hours until the movie you desperately want to see downloads, it?s better to borrow the DVD. You?ll have the possibility to see it a hundred times if you want! Unfortunately,...
Jack The DVDRipper Comes Back To The 21st Century
Dvd > Jack The DVDRipper Comes Back To The 21st Century
Organizing a Successful Family Reunion Event
Organizing a Successful Family Reunion Event
by: Mark Askew
Since the advent of the personal computer and network technology genealogy research by family members has become an addictive pastime that has contributed to many happy family reunions. But what if you were asked to organize the next event? Where would you start? When should you start? Should you hire a family reunion planner? The answers to these questions are three fold.
Since the advent of the personal computer and network technology genealogy research by family members has become an addictive pastime that has contributed to many happy reunions while others have discovered family members they never knew they had the world over.
If your reading this article you're probably one of those family members who have a spot in your heart for such reunions. But what if you were asked to organize the next event? Where would you start? When should you start? Should you hire a family...
Organizing a Successful Family Reunion Event
Dvd > Organizing a Successful Family Reunion Event
Improve Your B2B Direct Mail Response Rates With Premiums.
Improve Your B2B Direct Mail Response Rates With Premiums.
by: Alan Sharpe
Premiums are an effective way to increase your direct mail response rates. Whether you are selling a product or service directly through the mail, or whether you are using a sales letter to generate leads, premiums can help you boost response, increase conversions and motivate buyers to pay now rather than later.
A premium is simply an item that you offer to your buyer to take action. As Dick Benson has said, ?a premium is a bribe to say yes now.?
Premiums are effective because, dollar for dollar, they are better incentives than cash discounts. Given the choice between receiving a free Apple iPod or a $200 discount on their order, most buyers will opt for the iPod.
Here are some tips on using premiums effectively.
Aim for desirability over relevance
The key to choosing the right premium for your audience is desirability. If the premium is related...
Improve Your B2B Direct Mail Response Rates With Premiums.
Dvd > Improve Your B2B Direct Mail Response Rates With Premiums.
CD/DVD Master Preparation Tips
CD/DVD Master Preparation Tips
by: Adam Platzer
?CD/DVD Master? is the disc you provide to your CD/DVD vendor for replication or duplication of that media.
Here are some helpful tips for creating a high quality master:
- Always use high quality media.
All media is not the same.
Do your research and choose a brand that will produce a high quality disc consistently.
- Avoid burning from a network source.
If your source files are on a network drive, copy the files to your local hard drive before burning a disc.
If you cannot move the files to your local drive, please use the ?Copy To Hard Drive First? feature.
Your burning software will create a temporary image file during the burning process.
When the burn is complete, the temporary file is deleted.
- Avoid burning on a laptop computer running on battery power.
Fluctuations...
Dvd > CD/DVD Master Preparation Tips
Crying like a baby: The Motorcycle Diaries...
Crying like a baby: The Motorcycle Diaries...
by: Susanne Pacher
It has been an emotional evening tonight. In my earlier blog of today I indicated that I just heard news tonight that my friend Neil passed away, something that is going through my head as we speak.
Before I heard these news I had actually been watching the movie Motorcycle Diaries which has just been released on DVD. I have been meaning to see this movie for a while now, obviously because it would show great footage of Latin America, because it is about a long road trip, a true adventure - something that a travel nut like me would obviously enjoy.
But as the movie moved on to portray significant scenes of Ernesto ?Che? Guevara and Alberto Granado in the workers? selection at the mine, their visit to Macchu Picchu, their stay in the leper colony; you could really see the transformation of the characters. A transformation from a simple travelogue, coming-of-age story of two...
Crying like a baby: The Motorcycle Diaries...
Dvd > Crying like a baby: The Motorcycle Diaries...
Who is the TV Guardian in Your House?
Who is the TV Guardian in Your House?
by: Chris Robertson
If you're a parent, chances are you're concerned about the content your kids are being exposed to on television. According to a March 2005 poll by Time Magazine, 66 percent of respondents said there is too much violence on TV, 58 percent said there is too much cursing, and 50 percent said there is too much sexual content. Although that's the perception of adults, it's based in fact.
According to the Parents Television Council, profanity is used once every six minutes on network TV shows, once every two minutes on premium cable shows, and once every three minutes in major motion pictures. Alarmingly, according to January 2005 Nielsen statistics, Desperate Housewives is the most popular network television show among children aged 9 to 12. Unless you're willing to be the TV guardian in your house, how can you be the TV filter that ensures your home remains curse free?
Fortunately, new...
Who is the TV Guardian in Your House?
Dvd > Who is the TV Guardian in Your House?