http://subscene.com/
http://www.subtitlesource.org/
Note:
- If the file downloaded is not a subtitle file (.srt, idx, .sub etc.) but an compressed archive (.7z, .zip, .rar etc.) you will need to extract the file using 7zip, winzip, winrar, etc.
- If you already install K-lite codec pack, you just need to rename the subtitle file to the same name as the video file to enable the subtitle to play automatically.
- In case the subtitle doesn't sync correctly with the video, try downloading another one, alternatively you can search online for guide to sync subtitle.
Additonal Subtitle guide:
http://www.subtitlesource.org/help/guides

