Many users just buy blank CDs and DVDs without thinking much about the manufacturer who created them - most want it cheap which has the result that their system has to cope with different media. They notice that their system burns some CDs and DVDs faster without knowing why. Your burner might have the specification to burn DVDs with 8x speed but your burning software offers you only 4x. This article explains why that is the case and what you can do to never make this happen again.