From what I can see, it was only released in Japan on VHS. It remains unreleased on any other format in the country.
Jeez, not even on VHD videodisc or LaserDisc? That’s a bummer.
The copy on Youtube comes from its Polish DVD release which is as far as I know, the uncut Japanese version with Japanese credits. It has no English subtitles but the Japanese audio is there.
https://www.amazon.co.uk/Ozu-mahôtsukai-Region-English-version/dp/B0086D4IN8
Ah, I see. So that’s why I couldn’t find it on Amazon’s US site or on eBay.