Cheap Blu Ray Player

The companies continue to promote Blue-Ray and HD-DVD disc. The problem is in, that this good news actually are the next headache for us – the end users. Let’s return few years ago. At that time we saw similar comedy war with the same weapons different standards for DVD format. At the end, now we have several DVD formats – DVD RAM, DVD-ROM, DVD-R, DVD+R, etc.

Because now only can guess, what will happen with Blue-Ray and HD-DVD disc and devices I will shortly introduce you their main parameters and advantages.

At this moment with absolutely certainty we can say that the physical dimensions of new discs will be the same as the current known CD and DVD disc. The main difference is in the smaller wavelength of the laser which is used to read and write data on the disc.  Read more...

Blu – Ray is far more advanced optical disc technology, whether a DVD or CD to compare. When the DVD was for the very fine quality and high definition video known. But in the current scene, Blu – ray Disc (BD) has quickly taken on the DVD, with its tradition of remarkable properties and is an excellent overall visual experience.

Despite the physical dimensions of Blu – Ray and DVD are identical, is the biggest difference between themof storage capacity. While a 4.7GB DVD in a single layer 8.5 and kept in a double layer, a Blu – ray Disc (BD) has a capacity of 25 GB can be stored in a single layer 50 GB and almost double layer disc. This represents a dramatic increase in storage capacity of up to five times in Blu – ray. Technically speaking, as the name suggests, the Blu – ray Disc is dependent on blue laser – violet with a wavelength of 405 nm, stick in the DVD red laser a wavelength of 650 nm. The shorter wavelength in Blu – Ray allows you to compress data in a very little disk space, and also highlighted at a better quality of reproducibility in both size and performance.  Read more...