FFMPEG Script to convert to Audi spec MP4 and cut 5 mins

@echo off

for %%a in (.\convert\*.*) do (

    ffmpeg -i "%%a" ^
        -f segment -segment_time 5:00 -segment_list tmp.csv -reset_timestamps 1 ^
         -vf "[in]scale=iw*min(720/iw\,404/ih):ih*min(720/iw\,404/ih)[scaled]; [scaled]pad=720:404:(720-iw*min(720/iw\,404/ih))/2:(404-ih*min(720/iw\,404/ih))/2[padded]; [padded]setsar=1:1[out]" -c:v mpeg4 -b:v 2000k -c:a libmp3lame -b:a 192k -ac 2 -af "pan=stereo|FL=FC+0.30*FL+0.30*BL|FR=FC+0.30*FR+0.30*BR" converted\tmp%%03d.mp4

    setlocal enableDelayedExpansion
    for /f "delims=, tokens=1-3" %%b in (tmp.csv) do (
        set sec=%%c & set sec=!sec:.*=!
        set /a hour="sec / 3600"
        set /a mins1="sec / 60 %% 60" & set mins1=0!mins1!
        set sec=%%d & set sec=!sec:.*=!
        set /a mins2="sec / 60 %% 60" & set mins2=0!mins2!

        ren "converted\%%b" "%%~na-!hour!-!mins1:~-2!-!mins2:~-2!.*"
    )
    endlocal
    del tmp.csv
)
pause