DVD? That is some archaic tech going in the direction of VHS... You need to get out in front of Blue Ray and Streaming video perhaps even virtual reality to make a play in that arena. I would hesitate before devoting any resources in the direction of a DVD player.

Now, if the key factor is that you are thinking of a product that the DVD player is the Base for... Well, perhaps you may have something, but Cable companies are in control there. 

Still would be hesitant.

I agree, DVD is not a market you want to spend time innovating in.  However, I have no idea what your actual plans are and can only theorize that YES you can make design changes to a DVD player.

Ok, the DVD is an old technology, but it has advantages. If I give you a DVD of 1/2 to 1 hour video it only cost me 5 or 10 cents. You can play it, you can pass it on to someone. You don't need the Internet. Someone won't take it to overwrite the content when other much better write/rewrite devices are available. It's sorta like a book.

Now the DVD player needs improvement if the DVD I gave you has educational video. 

That's where I'm at.