Both HD-DVD and Blu-Ray were proprietary, patent- and DRM-laden standards. ... For once, the technically best format (Blu-Ray) won.
I'll just let these two sentences stand next to each other. They're too good. :)
It's not that Sony beat HD DVD which undermines your argument, it's that Blu-ray is a horrible technology, mostly exactly because it's DRM-laden. The blue laser is nice, the DRM and all the crap that goes onto a typical Blu-ray disc is not. What won is simply one of the two evils. Therefore, choosing Blu-ray as an "open" technology to show how good Sony is in using open technologies is just... let's call it a bad example.
Both are very closed, but one is a lot more open than the other (the PS3)
So one sucks less than the other, that doesn't make it a great example for "open".
whereas the post I was responding to was claiming that Sony uses proprietary formats.
Because the PS3 is the only device Sony is selling?