Who and when will a device such as a chip or USB be available to insert into another (DVD) device for videos?

Question

I want to know and researched some, but have not found this tech. This would seem a simplistic advance from DVD by why, who and when.

Answer 1

Do you mean a DVD player that will play from a memory device? I am sure the movie industry would adore that. And surely a $30-50 memory device is a good substitute for a 50 cent DVD disk.