Because apparently some people the question is what is the difference between the normal and double CD version is here some info. The normal edition includes the album with 13 titles. The first CD of the double CD edition includes the album with 13 titles. The second CD is a DVD. On this DVD a 33 minute documentary about the making of the album since December 2001 until the picture. It also gives an insight into the writing process of the pieces of the moment during "Linkin Park Tour 2002"