11:46:18 T:140617690638080 WARNING: CreateFile, error 20 opening file </store/Movies/The Big Lebowski/BIG_LEBOWSKI_DOM.iso/BDMV/index.bdmv>, flags:800, mode:124.
11:46:18 T:140617690638080 ERROR: CDVDPlayer::OpenInputStream - error opening [/store/Movies/The Big Lebowski/BIG_LEBOWSKI_DOM.iso/BDMV/index.bdmv]
Error 20 means ENOTDIR, which I can replicate with a simple program that tries to open the same path with the same flags and mode. Opening just the .iso file works fine. The error makes sense in the general case, since technically the path is not a directory.
It seems like this was something that just worked in natty, and something either got disabled or removed in my upgrade. I thought maybe I just needed to modprobe isofs, but that doesn't seem to help. I'm guessing something is different in my kernel now. Anyone have any pointers on what I need to look at here?