@echo off
cls
echo ..... Processing Video - Please Wait !! .....

SETLOCAL

set programm="C:\Program Files\Avidemux 2.5\avidemux2.exe"
set PROJECT="X:\Adult\projectname.js"

for /f "delims=" %%i IN ('dir /b /s *.avi') do (
start /min /w "" %programm%  --load "%%i" --run %PROJECT% --save "%%i.mp4" --quit
)

echo.
echo.
echo. ____!!Processing Complete!!____
echo.
Pause
ENDLOCAL