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EC-Council: Computer Hacking Forensic Investigator(CHFI-V10)
Module 3 : Understanding Hard Disks and File Systems
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Bookmark this Question		QID: 739
A forensics investigator needs to copy data from a computer to some type of removable media so he can examine the information at another location. The problem is that the data is around 42GB in size. What type of removable media could the investigator use?
A:    Blu-Ray single-layer
B:    HD-DVD
C:    Blu-Ray dual-layer
D:    DVD-18
Explanation: A single-layer Blu-ray holds 25 gigabytes (GB), and a dual-layer Blu-ray (one with two layers of information, one on top of the other) holds 50 GB. A standard single-sided, one-layer DVD can hold 4.7 gigabytes of data and 8.5 GB if it‘s a double-layer disc. A single-layer HD-DVD stores up to 15 GB of storage capacity, and a dual-layer disk provides up to 30 GB. DVD-R DS (DS stand for Double Side) is also called DVD-10 (Dual Side, Single Layer) or DVD-18 (Dual Side, Dual Layer), it is a sub category of DVD-R. A DVD-R DS has a storage capacity of 8.75 GB (DVD-10) or 15.9 GB (DVD-18).