Yesterday word came from Google that it's launching video support for schema.org.
Schema.org is a joint effort between Google, Microsoft and Yahoo! and is now the recommended way to describe videos on the web. The markup is very simple and can be easily added to most websites.....
Using schema.org markup will not affect any Video Sitemaps or mRSS feeds you're already using. In fact, we still recommend that you also use a Video Sitemap because it alerts us of any new or updated videos faster and provides advanced functionality such as country and platform restrictions.
Since this means that there are now a number of ways to tell Google about your videos, choosing the right format can seem difficult. In order to make the video indexing process as easy as possible, we’ve put together a series of videos and articles about video indexing in our new Webmasters EDU microsite.
Head this way to get Google's introduction page to video markups. Appropriately enough, there are videos there from Henry Zhang, product manager at Google's video search team, to walk you through the basics.