This year's Christmas presents could be sorted: scientists have invented a DVD-sized disc that can store millions of hours of video, enough for all your favorite movies and TV shows—and much ...

As the name implies, DVD+R dual-layer and DVD-R dual-layer discs double the capacity by having a second layer affixed to the disc. Now you have 8.5GB (opposed to 4.5GB) of storage capacity.

Each of the six episodes that make up the first season of The Office –now collected on a single DVD, with a bonus disc of deleted scenes and interviews–strings together incidents from the idle ...