http://blogs.office.com/b/microsoft-powerpoint/archive/2011/03/18/introducing-stamp-the-subtitling-text-add-in-for-microsoft-powerpoint-2010.aspxSTAMP is a free public beta that increases the accessibility of your presentations. With it, you can easily add closed captions to video and audio files, which boosts their impact for those with hearing disabilities. STAMP lets you create captions withinen-USTelligent Community 1.5.134.15456 (Build: 5.5.134.15456)