It's technically not Bee Train, but it's part of the .hack// franchise, so I moved your suggestion to the .hack// section and made it into its own topic.

Incidentally, I have very recently found it for cheap at a used Book/Movie/Game store, so I bought the Blu-Ray!

I'm up for it! Since it's so short it wouldn't hurt to watch right after Roots, while we're riding the .hack//TRAIN.
