CD/DVDs may contain information not accessible by a normal user however this data can be recovered using highly specialized forensic software potentially creating E-Discovery issues especially where this “hidden” data has not been intentionally produced. Moreover, the duplication process of a CD/DVD may yield two unique copies – two copies that have two different MD5 hashes. CD-ROM stands for Compact Disc Read-Only Memory, a mass storage medium utilizing an optical laser to read microscopic pits on the aluminized layer of a polycarbonate disc; DVD is short for Digital Versatile Disc or Digital Video Disc that holds a minimum of 4.7GB (gigabytes) of data. [...]