Subtitles problem

My standalone DVD player reads avi files, so I drag and drop onto the disk. However, it won’t read the idx and sub files for a movie. I’ve converted the 2.5mb sub using subresync, but the resulting 30kb srt file only contains the subtitles required at the 12 minute mark, 20 minute mark, 56 minute mark…etc
These work OK but where are the rest of the subtitles?
Thanks in advance.

Check what kind of subtitle files your dvd player can handle otherwise put the subtitles hardcoded in the video stream.

A nice tool to convert subtitles is Aegisub.

I can see all the subtitles when I play the movie in VLC, but not avidemux. Can I demux them?

I know my player reads text-based subs.