What is Srt
Srt is a file extension of Divx subtitle file format. It can be opened by Videolan Gom Player or Subtitle Workshop.
When you download a Divx movie on internet, you will need a srt extension file for watching the movies with subtitles. You should give same names to both file and movie.
For example, there should be "spiderman.srt" file with "spiderman.avi".
You can watch these movies with Bsplayer or Videolan. Those softwares open subtitle files automatically and show them with the movie. Videolan player comparatively better than the others because it doesn`t require codec for divx.
There are free subtitle timer softwares and divx players on internet you can easily find it.
If you need to cut or edit subtitles you can use Subtitle Workshop. Besides the subtitles can be converted to other languages by this software. Some web pages gives srt files in different languages.You can check different websites to get more information about divx movie downloading. Also you should check other pages, if you need any help for subtitle timing. "Time adjuster" software is good about subtitle re-timing.
Viewer or Converter for Srt
Videolan, Gom player, Subtitle Workshop
Which pages about Srt