Some simple Windows Batch Files to batch ffmpeg conversions to .mp3 files. This project comes with a pre-compiled version of ffpmeg.exe that is tested on Windows 8.1.
The source (git repo) for ffmpeg can be found here: https://github.com/FFmpeg/FFmpeg
Clone the repository to the desired location. Make sure that ffmpeg.exe and the batch file are in the same folder.
Drag and dropping files (convert_to_mp3.bat)
1.) Drag and drop the files to convert onto "convert_to_mp3.bat"
Drag and dropping folders (convert_DIR_to_mp3.bat)
1.) Drag and drop a folder onto "convert_DIR_to_mp3.bat"