as a followup to my last post, the asynchronous file reading code was working in such a way that it worked, but ended up reading each block approximately 1.5x. Hugely wasteful. Spent all day figuring out why, and it was sooo worth it. yay. That made v0.77, now for a bunch of little tweaks for tomorrows 0.78. I hope my users are patient, but I know having constant updates helps keep people happy. at least the people who like that. I guess some people want to just have one version that works and never have to upgrade. But hell, this is v0.77, I guess that comes later...