Enter the following codes at the main menu:

The Black Grail:
Press Left, L1, Circle, L2, Triangle, R2 at the main menu.

Carnstein and Jewel:
Press R1, Triangle, R2(2), Square, R1 at the main menu.

The Hand of Nagash:
Press R2, Left, R2, Up, Down, Left at the main menu.

Liber Mortis:
Press Circle, Triangle, Square, Right, R1, R2 at the main menu.

Victory:
Press L2, Right, Square, Right, R1, R2 at the main menu.

Long March:
Press R1, L2, Triangle, Square, Left, R2 at the main menu.

View credits:
Press Left, Right, Square, Right, R1, R2 at the main menu.