Quote: "The best way is to not care, there's no way you can stop people from ripping media from your game"
Word.
If you're not making a server-based game, where code/script injections and similar exploits necessitate encryption, escaping and hashing, I think you shouldn't bother at all.
For a hobby game, time spent encrypting content is time spent away from creating the game and time invested in absolutely nothing. For the most part.
And even for network games, it's code, client information and server communication that you encrypt -- not content.