Although Lords of Shadow's story is told in an episodic, linear fashion, you'll want to revisit earlier levels to find missing collectibles and beat any additional challenges. Without installing, you'll have to swap discs every time you want to revisit earlier levels. However, if you've installed the data, you won't ever have to swap discs again; you'll be able to continue playing with just Disc Two in the drive. It's an interesting way of overcoming the DVD format's size limitation -- a clever trick that could be employed by future multi-disc releases.
