convert dvd to digital

Currently, almost every person can own smart mobile phones, tablets or other handy devices with extreme ease. Also, more and more people like to watch TV series and movies on their mobile phones. The question then is how can you convert a DVD to digital? In this way, you can watch your favorite movies at any time and any place without re-purchasing and downloading online when you have the DVD sources. Here are 4 programs to help you achieve it.