A blu ray is a digital video disk that can record, store and play back high definition video, digital audio and computer data.
Consider the single-sided, standard DVD. It is capable of storing 4.7 GB of data (or about the size of the average two-hour, standard-definition movie). However, high-definition films have much greater clarity and need five times more bandwidth. Obviously standard DVD disks are inadequate and Blu Ray disks are the solution.
Today's television sets and movie studios have made the leap toward high definition technology and playback options with greater storage capacity are becoming essential for capture and storage.
So, how does Blu Ray Work? Before we tell you, let's cover some of the advantages to a Blu Ray.
Increased Storage Capacity
* A single-layer Blu-ray disk is about the same size as a standard DVD but it is able to store up to 27 GB of data - in excess of two hours of high-definition video or about 13 hours of standard video!
* Double-layer Blu-ray disks have a storage capacity of up to 54 GB and can hold 4.5 hours of high-definition video or more than 20 hours of standard video. Developments suggest that Blu ray disks will soon be able to hold double this amount.
