Blue-Ray Disc over DVD

 
When I was still a child, I can still remember watching Disney movies on our ancient Betamax player. And now, technology has certainly changed… from betamax to VHS, to VCD and now DVD.

But the good old DVD fears that it would soon be just a thing from the past. It is facing a tough competition, because its position is being challenged by the Blue-Ray Disc. It was being predicted that Blue-Ray Disc will become the standard format for high-definition movie discs. The question is when.

It is defined that Blu-ray Disc main uses are high-definition video and data storage. But the disc has the same dimensions as a standard DVD or CD.

The name Blu-ray Disc is derived from the blue laser used to read and write this type of disc. Because of its shorter wavelength (405 nm), substantially more data can be stored on a Blu-ray Disc than on the DVD format, which uses a red (650 nm) laser. A dual layer Blu-ray Disc can store 50 GB, almost six times the capacity of a dual layer DVD.

Unless prices for Blue-Ray disc player would go down, its chances in dominating video sales are still doubtful. Especially that only limited movie titles are available in the format.

We all want to enjoy watching our favorite movies using Blu-ray’s sharper picture and clearer sound. However, DVD should not yet fear its extinction because clearly it still has a long way to go.