Batch Extracting Rom Snap Images

Had a need to create a bunch of image screenshots for the roms in my collection. Here is a small windows bat file that will go through a roms folder and for each of the snap .mp4 files, create a screenshot .jpg file. Make sure you drop a copy of the ffmpeg.exe file (https://www.ffmpeg.org/download.html#build-windows) into the same folder as the .bat file. I used a latest static build.