This was the dominant video codec of the time, allowing a full-length movie to fit onto a 700MB CD-R while maintaining decent visual quality.
This indicates the source material was an official retail DVD, ensuring better clarity than "CAM" or "TS" (theater-recorded) versions.
Despite its low-budget "V-Cinema" (direct-to-video) origins, the movie utilizes stylized choreography and practical effects that pay homage to the 1970s era of Japanese exploitation cinema.