Would this fix a scratched CD?

p.s. I'm serious here. I honestly wonder whether this would be easier and/or more effective than some of the CD repair kits and machines. It would seem that actually filling in the defect is an option potentially superior to using a CD repair machine to grind away the rest of the plastic to make the surface even with the scratch. Anyone's thoughts would be appreciated, especially if someone knows a reason it would NOT work.

Thanks for all of the responses so far. I probably won't buy the thing for the reasons listed above, unless the urge to experiment gets the better of me.

Swampwalker:
Can you post a link to the product you use? The advanced Google search didn't narrow it down enough.