This is a Kadokawa film, meaning saying all editions by respectable companies are ports of each other would be a good guess.
But because I’m here, you don’t have to guess ;D
The R2J Kadokawa comes with a very good, although interlaced transfers. The R1 Adness (now probably oop, but re-released by Ronin Entertainment in one of their cheap Sonny Chiba Box Sets) is port. The R3 IVL is most certainly a port too, but poorly compressed to dvd-5. Avoid. There’s a french HK Video release too, but with french subs only and probably lesser transfer (they have a nasty habit when it comes to boosting image)
So, order the R1 Samurai Collection. It’s 9$ at dvdpacific (although not in stock at the moment) and comes with three films:
Legend of the Eight Samurai (kadokawa port, best available)
Ninja Wars (kadokawa port, best available)
G.I. Samurai (port of the old kadokawa, best english subbed disc available)
Bloody hell, now I wanna tell you about Ninja Wars, starring Noriko Watanabe as a super cute teenage ninja princess…
