Here's a tip for you if you are trying to save some cash. The path BRS can usually be found at Half-price book stores. It usually runs about $5. The difference is that it is the edition previous to the new one. The only differences are that the new one is printed on paper that makes it look smaller than it really is, and some keys printed by the parts that the brs feels are important. As far as content, the differences are very minimal and they aren't worth 30 bucks.