
Blu-ray Disc is what making the news right now.
The best feature is that it has a shorter wavelength (405 nm),
as a result the data storage in Blu-ray Disc is more than that on the DVD format.
The competitor for the Blu-ray is HD format.
Single layer=25GB.
Double layer=50GB.
It is 5 times the size of a single layer DVD at 4.7 GB.
Imagine the days when a CD can store data for only 700mb.
Blu-ray Disc has won the format war against its rival HD DVD,which is developed by Toshiba,
and is now the dominant next-gen format.