I ripped a 4:3 video accidentally as 16:9.

I can no longer re-rip the video.

I can force KMPlayer and VLC media player to display it as 4:3 and that works fine.

However, I have to change the mode back when I play other videos.

Is there a "flag" I can set inside the video container of the actual video file or something, to force the software player to automatically display the video as 4:3?