Hi all, I understand that there are 5 different colors of this DVD that are out right now, each with different inserts of quotes for each appropriate character. Also, there is a four disc set with all the colors except brown. What is the purpose of the 4-disc set? I'm almost 100% sure that the DVD content is the same on each of the 4 dvds, there are no Resevoir Dogs 2 or anything like that on each one. Can someone please answer this question for me? Thanks.