----------example 1 batch file

for %%a in ("*.mov") do ffmpeg -i "%%a" -preset veryfast -crf 15 -c:a copy "newfiles\%%~na.mp4"
pause

-----------example 2 batch file

for %%a in ("*.wmv") do ffmpeg -i "%%a" -preset veryfast -crf 15 -c:a aac "newfiles\%%~na.mp4"
pause

-----------example 3 manual command line (single file)

ffmpeg -r 60000/1001 -i input.mp4 -preset veryfast -crf 18 -r 30000/1001 -c:a copy output.mp4

----------example 4 manual command line (single file)

ffmpeg -r 50 -i input.mpg -preset veryfast -crf 18 -r 25 -c:a copy output.mp4