Forensics analysis on CD-R and DVD medias

It might seem unusual to talk about CD-R and DVD-R analysis in the end of 2006, 30 years after the invention of audio CDs. CD-R and DVD-R are used by millions of people who daily burns they discs without a deep knowledge of these medias. CD-R and DVD-R could carry out valuable datas hidden between their holes and pits. Hidden so well that also the people who burned that CD could think to be safe...