BLU-RAY and HD DVD is the format Disc Storage The Competing to replace the standard DVD format.
In effect, they sought to replace the standard DVD in terms of storage capacity, Although there is a need to improve on existing systems, it has two formats accepted because a lot of attention emerged from an already close to high-definition movies, video and televisionNotably, high definition movies need more storage space and this is why a search for the next generation of DVD is occurring.