So I have around 100 videos with DTS-HD audio track.
I demuxed them from video and now I need to cut last 5 seconds from all of them without re encoding. Then I will mux these into new video files.

What is Windows software to do this?
Can this be done with ffmpeg using command line? Does it support DTS-HD ?

If no batch option available, I don't mind editing each audio stream in dedicated software, but it MUST support lossless editing.