Okay for all who have problems with these kind of password here is the solution!
Firstable you should have installed east asian language settings under windows (xp or win7).
Then get 7-zip from here: http://www.7-zip.org/
I know the site where he got the video-links from so you could belive me for "westerns" who have not installed a special "asian" winrar version this is the only way to get the password working.