Change fourCC of Divx3 Low to XVID

[SmurfRecorder]

Hello. Is it possible to change Fourcc of video like that without reencoding? It is just very bad quality movie cant found any other version:

Format                         : MPEG-4 Visual
Codec ID                                 : DIV3
Codec ID/Hint                          : DivX 3 Low

i tried VisualAViFourccChanger (https://sourceforge.net/projects/vsfccchanger/) but when select XVID or even DIVX5 it change but file is unplayable (black video) after change back file play again

tried also ffmpeg:

ffmpeg -i 1.avi -c copy  -vtag xvid output.avi

but get error:

[avi @ 0000018700609040] Tag xvid incompatible with output codec id '16' (MP43)
[out#0/avi @ 000001877fd2da40] Could not write header (incorrect codec parameters ?): Invalid data found when processing input
Conversion failed!

[Hunk91]

You can try Avi FourCC Code changer available on this site.

But I don't think this will change anything because in my previous experiences Div3 or Div4 can't be played back correctly if changed to XVID or DIVX or DX50.

The best would be to post process with Avisynth (deblocking) and then encoding to a more modern codec and container.

Edit : I found this thread that gives an explanation https://forum.doom9.org/showthread.php?t=75047