Subdownloader is a GPLv3 Opensource tool for automatic download and upload subtitles for videofiles (DIVX,MP4,AVI,etc) from www.OpenSubtitles.org (OSDB). It uses special hash function for finding correct subtitles. Main Features: no spyware, source code is available at project homepage it uses fast hashing algorithm (27 GB movies/7 seconds) Search subtitles recursively easily from your divx folders Upload entire series seasons' subtitles in 1 minute Autodetect language of the subtitle Lots of great features, try it now... How it works: - Subdownloader applies to the VideoFile a Moviehash function getting an unique 64 bit string. - It requests this string to a online databases which contains the subtitles. See the XmlRpc Api. - It downloads the choosen subtitle(s) from the server. Run the EXE Installer