Recently, I walked the convention floor of  Anime Central , the self-proclaimed largest anime, manga, and Japanese popular culture convention in my stomping grounds of Chicago. While I typically don’t stick around for the full weekend since I’m usually there for work , I always make it a point to see what hidden gems I can find from manga and home video distributors like the incomparable Discotek Media . Even though I didn’t fetch the Nana  live-action Blu-rays I’d sacrifice my firstborn child for, on the off chance they didn’t sell out (they did), I for sure rubbernecked at the equally tempting copies of Memories and  Robot Carnival —two of the greatest anime anthology collections of all time.…