Blu ray: what is next

Written by Chuck Red

Continued from page 1

The benefit of using a blue laser is that blue light has a shorter wavelength so that it can be focused on a smaller target area than a red light laser. This allows data to be packed in more densely allowing more space for data inrepparttar same sized physical space.

Blu ray is called Blu ray because it uses a blue light laser to write data ontorepparttar 143661 disc.

Blu ray is expected to replace VCRs and DVD players and recorders overrepparttar 143662 coming years because Blu ray offers so much more capacity. Although it will take time for Blu ray technology to be come wide spread becauserepparttar 143663 cost of DVD drives and media is so much cheaper than Blu ray at this time.

Chuck Red runs both and

An Introduction to HD-DVD

Written by Chuck Red

Continued from page 1

There are two kinds of of HD DVD discs for content,repparttar 15GB single layer disc andrepparttar 143418 dual-layer disc with double capacity, a full 30GB. Usingrepparttar 143419 latest compression technologies,repparttar 143420 30Bg disc can store up to 7 hours of images. Today' DVD has a capacity of 4.7GB and store only 2 hours of standard definition content.

HD DVD discs have a data transfer rate of 36.55Mbps which allowsrepparttar 143421 24Mbps data stream of digital television broadcasts to be seamlessly recorded.

Using HD DVD inrepparttar 143422 every day world will have numerous advantage over other optical media technologies. The resilient HD DVD disc has a protective layer which removesrepparttar 143423 need for a protective cartridge, allowingrepparttar 143424 development of slim computer drives. The added bulk of a disc cartridge would have also caused any laptops using a cartridge based optical media disc to increase substantially in size to allow forrepparttar 143425 extra roomrepparttar 143426 drive would need.

Chuck Red runs several websites including and

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