The walther CD shows how decock works, the differnce between anti stress DAO and DA/SA works. They give you several angles as well. It also has some raw drop test footage. One of the videos is of a trigger much like the GLOCK's safe action trigger. Also some interesting slide shows.
The slide show is very impressive. The slideshow explains every video stored in the data section of the CD. I am suprised you guys haven't put this stuff on youtube its rather amazing info.