Have lots of MP4 files to convert to mkv and remove all audio tracks except one and all subtitles

Help
1

Have lots of MP4 files to convert to mkv and remove all audio tracks except one and all subtitles

However when I add multiple MP4 files there are a lot of tuck boxes, I had hoped as all the mp4s had the same audio subtitles tracks I could set them the same for all the mp4s, also even if I add as a queue, it only converts the first one, several times it seems overwriting the previous one, what am I doing wrong

2

See the following FAQ entries:

3

Hi JAK, I hope you’re doing great.

I’d love to help. Can you please tell me which audio track ID you want to keep?
And please confirm whether you want to remove all the subtitle tracks.

If you want to keep all the subtitle tracks instead, we can do that, but please note that not all subtitle formats in MP4 are supported by MKV (most are though).

Also, please mention the path to your mkvmerge.exe (example: D:\MKVToolNix 99.0 x64\mkvmerge.exe)

Let me know so I can customize my batch script for you.