DVD Production Credits
On the second DVD in the set, go to the [Main Menu]. Scroll down until you get to the last option. On the right you will see the "SE7EN" logo. Once you're at the last option, hit the [Right] button and a square under the logo will light up. Hit the [Enter] button, and you will be able to page through the credits of the technical companies who contributed to the DVD.
As you're reading the credits, look for the logo of each company. Highlighting them will take you to additional information about them.