This plugin will help you generate Google Video Sitemaps (XML) for your WordPress blog.
Once you have created your Sitemap, you can submit it to Google using Webmaster Tools. Google don't guarantee that all videos included in a Sitemap will appear in our search results.
If you have a small number of videos on your website, you may check this option. Please not that the plugin will make one call per video to the YouTube API to determine the duration of the clip. It uses CURL to interact with the YouTube API.
You can find the sitemap-video.xml file in your blog's root folder.
It implies that you don't have write permissions on your blog's root folder. Please use chmod or your FTP manager to set the necessary permissions to 0666.
The Sitemaps protocol enables you to let search engines know what content you would like indexed. To tell search engines the content you don't want indexed, use a robots.txt file or add a robots meta tag to the web page that you would like to block.