I have used the plugin, i did made modification to it to be able to extract the information i needed. The format of xml don't have any errors, but my videos don't get indexed on google.
I have post a question into google forum, and i have read this comment:
At this point, Google is still working on support for YouTube embeds and video sitemaps to support them (directly from the mouth of the PM at Google Videos).... For - obvious reasons, they need to work through a method of authentication such that spammers dont embed and rank for youtube videos across the web.
My video-sitemap doesn't get indexed on google...
For a few days, in google Webmaster tools, it was saying than 2000 url was in web index, but when i went on video.google.com and put site:top3dtv.com nothing was returning from the search.
It look like, google don't index embed youtube.
Did somebody was able to make it work for embed youtube (mean your video are in google video result), if yes, can you send me the link of your video sitemap?
Will compare with mine, in case i did something wrong.
See my sitemap: