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.
An understatement of more than 25 percent of the gross income listed on the return is considered a substantial understatement. The IRS has six years from the time the return was filed to assess additional tax. The statute on the unreported income includes any penalty or interest amounts added onto your tax.