Or something else?
Well I did discover that Roxio already has a Blu-ray plug-in for Toast that will write Blu-ray content to either a Blu-ray player, or even a DVD disc (I didn’t even know that you could put Blu-ray content onto a DVD!) Interestingly, it’s an additional $20 (ontop of the $80 for Toast.) I can't help thinking that one of the reasons they didn't just include it in the package was because of extra licensing fees they had to pay. At a guess, it sounds like if Apple added Blu-ray support to iDVD (iBlu-ray) would they have to pay $10-20 per machine for licensing too? That’s probably the kicker.
As to licensing issues for users, that’s probably only an issue for mass production (and that’s not Apple’s concern anyway.) But I did find out some interesting stuff about that too. A friend sent me this link to an article about Blu-ray licensing. The Ins and Outs of Blu-ray Disc Replication and Licensing by Hugh Bennett.
The interesting part of that article - and you have to get to the bottom to find it – is the summary of licensing costs for pressing a Blu-ray.
Quantitatively speaking, for 1,000 copies of a simple title, all these demands add at least $7.54 overhead to the price of a single disc (calculated as a one-shot deal). Based on my earlier examples, this works out to roughly $11-12 (SL) to $13-14 (DL) each for a finished product.
Note: for more info on licensing, see also: Blu-ray Disc Licensing for Small Publishers, Duplicators, and Independent Studios