Does Sony get royalties from each BD sold?

[drkohler]

Zuhyc said:

Now, quite some people are saying the profits from BD movies will all be worth it. Which made me wonder, how does Sony make money off BD Sales? Royalties? If so, all of the Bly-ray Association would have to get royalties, something quite expensive.

There are around 21 patent holders that get royalties for BD. Even if 10m players were sold every year, Sony (and pretty much each of the companies involved) would barely get more than the money they pay their officers to run after the royalties...