This effort makes a lot sense and demonstrates alternatives exist to cooper cabling. The fact that Plastic Optical Fiber (POF)is being designed, manufactured and deployed as a small network in vehicles simply demonstrates that POF is a viable medium for high-bandwidth applications. From a car-makers perspective, in-vehicle infotainment systems are going to be a key differentiator along with fuel efficiency, and environmentally friendly cars!
POF usage in Home networks is a logical next step!
I'm guessing the Blue-Ray is for infotainment, and I've got to ask my self why you would ever want HD video in a vehicle. The typical screen size and lighting conditions are such that it's near impossible to tell the difference between DVD & HD quality. This looks like an attempt sell something into a market purely because you can, rather than because it offers any tangible benefit. :-)
It is hard for me to understand why we'd want a blue-ray disks in an automobile. I think placing mass storage combined with source compression in a vehicle is where things are heading . This is much better accomplished with hard drive storage (or other if it can compete cost effectively). Wireless communication with home servers and an app that can run on a home computer to talk to the car and transfer whatever information needs updating overnight makes more sense to me.