Blue Ray Disk :

From Floppy To BD :

In olden days we used to store data on tap or floppy, they were of very less capacity around 1.2 MB or 1.44 MB, we could not store even a single high-resolution photo in it. That is why it was flopped. Then CD (Compact Disc) came in to existence that can store up to 700 MB of data after that it became possible to store long size and high quality videos in it, but CD’s can store only a part of movie can’t store entire movie. Then DVD came in to existence that can store up to 4.7 GB of data, it became possible to store entire movie in one DVD. High quality video and sound can be stored in it too.

What is Blue-Ray disk?

Now a day’s Blue-Ray discs are becoming popular. Blue-Ray disc is around same size as a DVD or CD. It comes in two varieties single layer and double layer. Single layer BD (Blue-Ray disc) can hold up to 27 GB of data and double layer BD can hold up to 50 GB of data, while DVD can hold only 4.7 GB data. It can be used to store Movie, Audio, Video, MP3 and any kind of digital data. Blue violet laser of 405 nm is used to store data on it. It requires BD (Blue ray discs) player to play BD. Is is used to store High Definition videos.

It also has some unique features:

1. High Quality Video and Audio can be recorded in it.
2. Rapidly jump to any spot of the disk.
3. While watching movie, program can be record on another part of the BD.
4. Auto search of empty space.

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