Question

differences between DVD and Blu ray disc

Answer 1

DVD is a digital optical disc storage format invented and developed in 1995. The medium can store any kind of digital data and is widely used for software and other computer files as well as video programs watched using DVD players.

Blu-ray or Blu-ray Disc is a digital optical disc data storage format. It was designed to supersede the DVD format, and is capable of storing several hours of video in high-definition and ultra high-definition resolution.

Answer 2

Difference between DVD and Blu-ray


DVD- Single layer DVDs can store about 4.7 GB of data, which is about two hours worth of movie. These are commonly referred to as DVD-5s. Double layer DVDs, or DVD-9s, can store twice the amount of data at 8.7 GB. This equals about four hours of movie, or one “Lord of the Rings” movie.


Blu-ray- Single layer Blu-ray discs store approximately 25 GB of data, this equals about two hours of high definition information or 13 hours of standard definition information. Double layer Blu-ray discs can hold about 50 GB equaling about four and a half hours of high definition information or 26 hours in standard definition. Potentially you could put all three “Lord of the Rings” movies on one double layer Blu-ray disc.