The Canon Question

How do we know which books belong in the canon of Scripture? In what way do we necessarily depend upon the Church in order to answer this question? If the Church has the authority to determine the canon of Scripture, what does this entail regarding the Church's authority to determine the authentic interpretation of Scripture? What difficulties face the sola scriptura position regarding the Canon Question? Tom Brown posted a challenging and well-researched article today that addresses the Canon Question in relation to the Protestant-Catholic dialogue. Read it here.