Blue-Ray Disk

The entertainment industry in the latest century has given the world some of the biggest evolutions. One of the biggest evolutions was the arrival of DVDs. It had a huge impact on the total entertainment experience. Latest blockbuster movies could be watched at the comfort of their homes mainly because with DVDs came the DVD player. High picture quality, audio and video resolution meant that people did not have to waste time at a cinema hall anymore. They could get the same experience in their living room.

After the DVD was engulfed by the world, next came the Blue ray disk with more features. Unlike the DVD, the Blu ray disk is mainly used for high-definition data and video storage. Another dissimilarity between a DVD and a Blu ray disk is that a DVD uses a red laser, whereas the Blu ray disk uses a blue laser. The name Blu ray was a result of the laser color that was used in the disk.

The Blu ray disk was developed by the Blu ray disk association; a group consisting of some of the highly known names in the consumer electronic trade. The most popular names include Sony, Hitachi, Philips, Samsung, Panasonic, Hewlett Packard (HP), etc. A Blu ray disk is used for recording, rewriting and the playback of high definition video.

When talking about advantages, one of the major advantages a Blu ray disk has over a standard DVD is the high storage capacity. A single-layer Blu ray disk has a storage capacity of 25GB and the dual-layer Blu ray disk can store up to 50GB. It also has advanced audio and video codes, therefore a person can have the ultimate high-definition video viewing experience.

Unlike the traditional DVD, a Blu ray disk has storage capacity around five times higher than a traditional DVD. These disks can store high-definition video as well as standard-definition video. The standard can store around 9 hours whereas the high-definition video can store up to 23 hours. Another advantage of the Blu ray disk is that the blue-violet laser in it has a shorter wavelength, focus is made on a disc area with greater precision. Although the looks of a CD and a Blu ray disk may seem the same, the storage capacities differ a lot.

The major disadvantage is that sometimes standard DVD players are unable to recognize the format in these disks. But this is being rectified by the use of backward compatible players. Such players have the ability of reading Blu ray disks, CDs as well as DVDs.

Filed Under: Blu-Ray Technology