Monster Zero x SciFi Japan - Archive Only

Hi everyone,

I recently bought Shout! Factory's Gamera : The Giant Monster DVD and although the transfer is great, I was disappointed that there are no English dubbed versions on the Disc while the other Shout! Factory Gamera DVDs do.

I'd like to get an English dubbed version (i.e. Gammera the Invincible), obtain a double disc Amaray case and add the cover sleeve, booklet, the Shout! Factory Disc and dubbed version DVD disc into it so I have all the complete versions in one case.
I'm an OCD completist like that.

Anyway, I recently came across a couple of dubbed releases, but I am unsure what the difference is and what dubs they contain.
I understand there is the original dub and the Sandy Frank dub, but I am unsure which DVD release contains which.

Here are a couple of releases, can anyone shed any light? -







I'm not really interested in any MST3K releases.
Thanks in advance for any help here.

The first one is the US version. I've never owned the other two but I would guess that anything with "Gammera the Invincible" as the title is the edited US version. The Sandy Frank version was first released on VHS under the title "."