Get docid/contentid from Google Video URLs and id from metacafe URLs

[Lolalola]

Hi, how get from video.google current video pictures? For example i have this video:

http://video.google.com/videoplay?docid=1811233136844420765

And this video pictures url is:

http://video.google.com/ThumbnailServer2?app=vss&contentid=d53e613f82f74c96&offsetms=50000&itag=w160&lang=en&sigh=QGtXRNh3rW4hfa6DSQSFtfOimno

.................

http://images.metacafe.com/thumb/386357/[B]2767198[/B]/4/catalog_top_item5/0/teach_magic_be_magician_money_magic.jpg

And from wher get metacafe second id (2767198) ?

So how only from video id to get a picture link?

> And from wher get metacafe second id (2767198)
What do you mean?

For google video:

http://www.scottklarr.com/topic/415/how-to-grab-thumbnails-for-youtube-and-google-video/