What is the difference between Dragon Rider and Eragon because some people said there was no difference?

Dragon Rider, by Cornelia Funke, is about a dragon and a brownie who are searching for the place where many dragons are said to live so that they can have their dragon colony live there too. Along the way they meet a homeless boy who wants to go with them.

Eragon, by Christopher Paolini, is about a farm boy who finds a dragon egg near the mountains where he lives.