But it's not about selling online but about access. Which is parental responsibility.Why do we restrict porn at 16 anyway? Make it 13 or 12 to make more sense.
DVD's are getting old. Rate of degradation due to manufacturing inperfections is about 1:10 in public library.
There's two parts to this; the dvd player and the video player in the TV (or if it's a HDMI player, in the players firmware).
MS, please take a look at Metapad for how to build a good basic text editor with some smart features.
It's about faking play integrity on devices without gapps.