I made a program that extracts pictures, movies, sounds, animations and texts from Berwick Saga. This is a by-product of translation work.
Some examples: http://telegra.ph/Berwick-Saga-images-06-12
It extracts only sound samples, not actual music.
The program can extract only one type of animation, mostly used for battle map, the second type is more complex I have not explored.
You can download binaries and source code from github: https://github.com/Lightgazer/Berwick-Saga-Resource-extraction/releases