what is a Digipak?

So when asked the question what is a digi-pak initially I honestly didn't have a clue. After researching I realised it was something i already had come into contact with in my everyday life, but in had been calling it a "album" not a digi-pak.
In order to create our own digi-pak, just like our music video we had to be able to point out the conventions of a dig-pak. Something I had noticed was that

1. There was usually a singular picture of either a logo, band member, of actor on the front cover.
2. The name of the artist is clear presented on the front cover
3. Most usually the tracking list is placed at the back of the digi-pack
4. The same theme is carried throughout the font and back and also on the inside of the pak. Showing continuity.
5. A bar code is placed at the bottom on the back cover.

For out digi-pak to look as professional as possible we had to make sure our own digi-pak followed these conventions.