Video ID is tool for YouTube's content identification and management system that helps content owners decide exactly what they want done with their videos, whether to block, promote, or even—if a copyright holder chooses to license their content to appear on the site—monetize them.
“We've been curious to see what copyright holders would choose. Would the vast majority of partners block user-uploaded videos? Or would they embrace Video ID as an opportunity to generate revenue and exposure for their content online?
As it turns out, our partners are choosing the latter, monetizing 90% of all claims created through Video ID. This has led directly to a similarly significant increase in monetizable partner inventory, as our Video ID partners are seeing claimed content more than double their number of views, against which we can run ads. This means that if a partner has, say, 10,000 views of its content, leaving up videos claimed by our system will lead to an average additional 10,000 views of that same content. We call this "partner uplift," and for some partners we've seen uplift as high as 9000%,” reports Google Blog.