How to add subtitle file to jav video

unnnn.
you mean you dont know how to use it ??

add??? or you just want the program reading it ???

adding sub is called " hard sub " , and you can google " how to do hard sub "

long way to go ....

or you just want to use this subtitle ???

because there is so many program for playing video so no one can answer you

just google " how to open subtitle with " your program name " "

or you put the subtitle in the same folder as the movies .... and then you rename the subtitle file with the same name as the movies

such as.. your movies s name is ... juq-409 so you need ... to change your subtitled name to " juq-409"
then when you are playing the movies ,,, the movies will have subtitle
 
Hi all i have a subtitle file for juq 409 but can someone advise best way to add it to the video

I have some experience with JAV subtitles.
There are two different ways to watch JAV movie with subtitles.

1. If you just want to see movie with subtitles - use VLC player.
You should have both video file and subtitles file, usually subtitles are in .srt format.
Open the video file with VLC player - and find on toolbar (above) the button - Subtitles.
click on it and chose option > Add Subtitle File
Usually I put subtitle file .srt in the same directory/folder with movie/video file.
Find in the opening window the right subtitle file, mark it an with mouse click and click on > Open.
Movie starts to play with subtitles.

2. If you want to MAKE a copy of video/movie with added subtitles on it /hardcoded/.
you should use a proper video editor/converter.
I use a paid version of video editor, where is a possibility to add subtitles file to movie file.
Just click on "Add subtitles" > mark the .srt file - and editor ads subtitles to video/movie.

Depending from PC OS, CPU and RAM, with GPU in use - also from GPU RAM -
it takes about 25 - 35 min, to have a 2h movie with hardcoded subtitles.