Both movies are on YouTube in their entirety, so check them out to see if you like them enough to want to own them. The D.C. cartoon movies are generally better than the Marvel ones. These movies are decent but not great... I think the second film is better overall.
$10 for both movies, plus bonus features, on BluRay is a great deal... and that's why I gave it 5 stars. Beware that there are also single DVD's of each film, and DVD's with both films, and DVD's with both films plus a 3rd (and weaker) film. This one is cheaper AND the picture quality looks better on BluRay.