I have an .mp4-file, encoded from DVD with Handbrake. Now I'd like to add an extra audio track (with another language) to the .mp4 file but I haven't found a good tool to do this. Any suggestions?

As much as we love FFmpeg for transcoding op­erations, it can get frustrating when packag­ing your content for ABR delivery. By packag­ing, I mean formatting and segmenting your media files, creating ...