Definitions

I thought it would be a good idea to get some definitions of things I don't understand now, so I will know about them when I need to:

• Digipak: Digipak is a patented style of compact disk or DVD packaging, and is a registered trademark of AGI Media, a MeadWestvaco, Inc resource, which acquired the original trademark holder, IMPAC Group, Inc., in 2000. Digipaks typically consist of a gatefodl (book-style) paperboard or card stock outer binding, with one or more plastic trays capable of holding a CD or DVD attached to the inside. Digipaks tend to be used for special editions of CD's rather than ordinary singles.