This is a one stop shop for adding subtitles to your videos. This video covers transcription, translation, adding and embedding of subtitles.
These are the links referenced in the video:
http://www.dcmp.org/ciy/converting-youtube-to-srt.html
This is a collection of website to help aid you if you want to try taking on a different language. Here are the websites covered:
http://how-to-learn-any-language.com/e/index.html
http://www.oculture.com/
http://fsi-language-courses.com/
http://babbel.com/
http://www.mangolanguages.com/
http://jvlt.sourceforge.net/
http://babelfish.altavista.com/
http://www.transl8it.com/