Monster Zero x SciFi Japan - Archive Only

So there's english language trailers like this up on youtube showing that these two movies were dubbed into English.

OK, so there's 2 Zearth DVDs available from Malaysia that say they are English LAnguage only. What are the odds they are these dubs and not some horrible Malay dub job?

Also, anyone know where to get Zearth either with this dub or subbed?

Thanks!

I picked up some boots years ago from a convention. Zearth was english dubbed and Zearth 2 was subtitled. Not sure what the Malay release includes, but there was apparently an international dub for at least the first one.