I assume it’s the 1996 film?

Yes.

1- Is it as good as Violence Jack OVAs?
2- Do I have to watch other Black Jack stuff to enjoy and understand what’s going on?
3- Is Portuguese subtitles have been added by a fan or is it an official content within the DVD?
4- I really wish you good luck in tracking Kaiketsu Zorro German DVDs and thank you for everything .

1. I don’t know. This is all I have of it, I think.

2. The story here is about a doctor and super humans from what I gather. So, even someone completely new can enjoy it, I’d say.

3. They’re official. I’m surprised they were even there, and even more surprised they’re synched to a dub than the Japanese audio.

4. Yeah, been hoping for the prices to drop though so far, they’re still high. If I get 'em I’ll happily upload.

Thanks! any chance to seed this please?