Trying to join videos together with tsmuxer cause "moov atom not found"

[monks19]

Hi. I'm trying to join some videos together (filmed during an event with my DSLR) that have been cut automatically at each 20 minutes (I tried to film an full event of about 2 hours). I know it's possible to to with TsMuxer (done it before), but sadly, for some reason, each time I try to join the files together, it gives me that failure message: "moov atom not found" (Error code -2).

Is there any way around this, please ?

Thanks in advance if you can help

[ProWo]

You can try with clever FFmpeg-GUI.
Click Join on the start screen, drag your videos into the form. click join.
Done.


[Attachment 87079 - Click to enlarge]