The key difference between DVD and Blu-ray/HD-DVD is that DVD is a standard definition format in which disc information is encoded in 480i resolution, while Blu-ray/HD-DVD disc information can be encoded up to 1080p.
Definition of Understatement. Understatement is way of speaking which minimizes the significance of something. When using understatement, a speaker or writer often employs restraint in describing the situation at hand and uses an expression with less emphasis or strength than would be expected.
Understatement. Understatement is the deliberate description of something in a way that makes it seem less important than it actually is. Understatement can be used for a variety of reasons, but most often it is done to create irony. Understatement is the opposite of hyperbole, which is deliberate exaggeration.