Moving from Slackware 14 to 14.2 I forgot one or two details about how to get mplayer to display Japanese srt subtitles. At this time an essential bit is that mplayer needs to be explicitly pointed to a suitable font. I used the
-fontconfig -font [fontname] solution, and put it in my
Some options seem superfluous by now. I simply stopped experimenting when I got it to work.
subfont-encoding=unicode unicode=yes utf8=yes subcp=utf-8 fontconfig=yes font='さざなみ明朝'