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  1. Hello everyone,

    Anyone knows or can help me why I am getting this error when I am trying to concatenate list of *.m4s files and convert them to .mp4?
    When I am doing the same procedure through InviDownloader (Concatenate files) it works like a charm but when I am trying to use ffmpeg this the error I am getting:

    ffmpeg -f concat -safe 0 -i mylist.txt -c copy concat.mp4

    [Attachment 55482 - Click to enlarge]

    Even though the files in the mylist.txt are in the right order like this - 'file *.m4a'.
    and the init m4s file is the first in one in mylist.txt

    Thanks in advance
    Last edited by yarinaz; 13th Oct 2020 at 13:18.
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  2. according to the error message the processing was aborted since a37.m4s couldn't be opened.
    Are you sure the file exists and isn't broken?
    users currently on my ignore list: deadrats, Stears555
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