Blu-ray discs offer video in "Full HD" at a 1080p resolution for exceptionally vivid, lifelike images. They also allow for higher quality surround sound to be encoded on the discs, as well as much more information due to the data storage capacity on a Blu-ray disc being much larger than a standard DVD. A dual layer Blu-ray disc can fit 50GB of data compared to 4.7GB for a regular DVD!