That's for games. For video content, i'd say do not "buy" anything digital. The video content industry has Kafkaesque licensing agreements and a pathological fear of "piracy" so you're guaranteed to lose access either because someone's agreement thrice removed from whoever you "bought" the content from expired, or because the latest copy protection that was in fashion when you "bought" it is now unsupported.
Edit: hey, can your kids inherit your "digital content"? They can inherit your disc collection.