ffmpeg -i "Party.Down.S02E10.mkv" -c:v libx264 -c:a aac "Party.Down.S02E10.mp4"
ffmpeg -i "Party.Down.S02E10.mkv" -vn -acodec copy "Party.Down.S02E10.ac3" party down s02e10 ffmpeg
If you're looking to create a feature (like a program or script) that uses FFmpeg commands: ffmpeg -i "Party