Allow me to rephrase my question to clarify as I am still confused.
New cameras are mostly HD. People are still making a living recording weddings, events, ect…with these cameras.
With that said I find it hard to believe they are
A. Recording everything in SD with these new cameras so that it can be put onto DVD.
B. They are putting everything HD onto Blue-ray since DVD is still the staple for home video.
So how are people filming in HD but burning to DVD for a playable disk in a DVD Player.