Command line tool to join multiple .wmv files?

UNIX macOS
1

I need a simple command line executable that allows me to join many wmv files into one output wmv file, preferrably in a simple way like this:
wmvjoin file1.wmv file2.wmv .... > outputfile.wmv

So what I want is the wmv-equivalent of mpgtx
I cannot find it on internet.

Thanks.

2

try "cat"...

 cat file1 file2 fileN > newfile
3

Does not work: the resulting outputfile has indeed the size of all inputfiles together, but when playing, it only plays the part in the first wmv file.

Apparently, it requires some clever 'stitching' to join the footers and header of subsequent files.