It's my understanding that kernel 2.6.26 brought UDF 2.5 support, but I am not sure what tools have the capability to create a UDF 2.5 ISO to burn to a DVD or Blu-ray disc in a video format. My intentions are to be able to playback AVCHD video on a Blu-ray player. I've stumbled on a "mkudfiso" project[1] but I haven't tried using it yet. I can't seem to find any Blu-ray authoring utilities for creating a Blu-ray directory structure either. Are there any better tools?
As far as Google is concerned, Blu-ray authoring seems to be an entirely Windows or Mac thing.