@echo off
mkdir old\1
mkdir old\2
mkdir new\1
mkdir new\2
move "Season 1"\*mkv old\1\.
move "Season 2"\*mkv old\2\.

for %%v in (old/1/*S01E*.mkv) do ffmpeg -i "old\1\%%v" -map 0:v:0 -map 0:a:0 -map -0:a:1 -map 0:s:0 -map 0:t:0 -c copy -disposition:a:0 default -disposition:s:0 default "new\1\%%v"
for %%v in (old/2/*S02E*.mkv) do ffmpeg -i "old\2\%%v" -map 0:v:0 -map 0:a:0 -map -0:a:1 -map 0:s:0 -map 0:t:0 -c copy -disposition:a:0 default -disposition:s:0 default "new\2\%%v"

move new\1\* "Season 1\."
move new\2\* "Season 2\."
rmdir new
ren old older
cls
echo .
echo .
echo "DONE!!!"
echo "You can close this window."
echo "Bye :)"
pause