What I'm looking to achieve is to write (and read) data files on BD-R discs for storage / backup / archive purposes, just like one can do with CD and DVD discs. For clarity, I am not interested in copyrighted / encrypted / DRM'd BD-ROM HD video material / films, just plain data accessible through Finder.
Obviously, I would have to provide myself with a Mac compatible Blu-ray writer / burner first.
That being said, does OS X support reading and writing data files from / to BD-Rs natively without 3rd party software? If not, is there any open-source software that would allow that?
I'm on a MBP with Yosemite and have never used an optical drive on OS X, so I'm not familiar with that process. Online documentation on Blu-ray for Mac / OS X is pretty sparse and I can't find an authoritative source on the matter. I'd be hard-pressed to believe I'm the only one who is trying to achieve that.