How many movies have Daniel J. Wiley and Susan Blu collaborated on?

They have worked on 7 movies together! Their first movie together was The Land Before Time VII: The Stone of Cold Fire (2000) while their highest rated movie together was The Land Before Time X: The Great Longneck Migration (2003). They have not worked together since The Land Before Time XIII: The Wisdom of Friends (2007). They are most known for their family films together.