I tried (just now) Samsung's SmartView -- which replaces AllShare -- and I cannot get it to work.
The SmartView app on my PC cannot find my TV, even though they're on the same hardwired network.

Thanks for your effort, but it really isn't worth it to me to continue to troubleshoot, just to get chapters.
I'll use my USB drive when I need chapters, and Mezzmo when I don't.