While royalties may indeed add to Billions of Dollars per year for CDs, DVDs, and eventually Blu Ray, the point is that NO ONE COMPANY really benefits substantially.
If it is a consortium, the royalties get all split up, not just to the companies, but also different patent holders of different parts of the technology.
If you look up the DVD "inventors", (Sony is also one of them), you can see that not all companies that are part of the consortium are necessarily flush with cash from all the royalties collected.
(Googled: Who invented DVD - Link: http://www.allformp3.com/dvd-faqs/61.htm)
So ultimately, the hardware will decide if Sony (in this example) will ultimately benefit from widespread adoption of Blu Ray.
The movies department not so much, as content will generally move to whatever the dominant media is at any specific point in time.







