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

1. Make [Single Audio] Japanese: Throws out *English audio* and *Signs&Songs subtitles* tracks
2. Make [Single Audio] English: Throws out *Japanese audio* and *Dialogue subtitles* tracks

To apply these put all the video files into the *Language Options* folder and run the corresponding script.
Note for Linux: mkvtoolnix package must be installed

Have a wonderful day! =)