A little over 10 years ago I had frankly ample opportunity to purchase this set but didn't under the stupid hope that Aniplex would of course eventually release this show on Blu Ray. Because there was no world where they would just sit on the second season of a once evergreen license for Funimation, that would be just stupid. BUT of course they never ever did.
This DVD set, while not ideal, is the only English release the second season of Mushi-Shi ever got. And it is stupidly rare these days, primarily I suspect because down under I imagine if you own this you have no good reason to part with it. It's kinda a miracle it exists at all.
I've had an eBay Australia search bookmarked for it for around 4 years. Finally a copy turned up, factory sealed no less. I'm so pleased to have finally put right a wrong of having not bought this all those years ago.
Also screw Aniplex for not releasing this, I genuinely hate that they license shows and never release them. Common practice in today's world I guess with Crunchyroll but back then much less so. There is zero good reason to have not released this title, as mentioned Mushi-Shi was always a solid seller.