Language Options
I included two simple scripts that you can apply to these files to do the following (Windows only):

1. Change [Default Tracks]: Switches default tracks to *A:Japanese S:Dialog*
2. Make [Single Audio]: Throws out *English audio* and *Signs&Songs subtitles* tracks
        
To apply these put all the video files into the *Language Options* folder and run the .bat file.
Have a wonderful day! =)