Convert DVD videos into mp4 files with ffmpeg

Convert DVD videos into mp4 files with ffmpeg

https://www.tech-g.com/2017/01/15/converting-dvd-to-mp4-h264-on-windows/

ffmpeg -i "concat:VTS_01_1.VOB|VTS_02_1.VOB|VTS_03_1.VOB|VTS_04_1.VOB|VTS_05_1.VOB" outfile.mp4