I wonder if it is possible to have vertical subtitles in Japanese on an SRT format…
It is possible that the Japanese versions displayed the forced subs on the right side of the screen, in a vertical format read from top-to-bottom and right-to-left.I know many Japanese versions of films display subtitles in that manner. Or Japanese films with subtitled dialogue display the subs in that manner.
Vertical subtitles were used for the first theatrical release. Otherwise, this is the only other LD FY570-35MA that uses this.