This will save your time and money as you won’t have to buy that DVD again if you have a copy of it as an ISO or a DVD folder. If you paid for the DVD then at some time you may feel to make a copy of your DVD movie and save it on your computer’s hard drive. Only those DVD players which are CSS licensed can decrypt those encrypted DVDs and play. DVD encryption also prevents the DVDs from playing on multiple media players.
But genuine DVDs may come with encryption which prevents anyone from illegally copying the discs. The reason being their cheap price and you can avail of 576p quality from a DVD movie.