Using video sitemaps is a recommended way to give us information about your videos. Submitting a sitemap pushes your video metadata to Google and reduces the time it takes for us to discover your video. Learn more about video sitemaps here: www.google.com

The most common factor preventing the appearance of Rich Snippets in search results is the use of hidden markup. For more information about avoiding hidden markup and other troubleshooting tips, visit Webmaster Tools Help (www.google.com

Once you've implemented markup, we highly recommend that you test your site using the Rich Snippets Testing Tool (google.com When everything is working properly, Google will automatically find it next time we crawl your site, although it may take some time for rich snippets to begin appearing in search results.