intimus Data Grinder 005S - Manual (Page 5)

5
005 S
IMPORTANT SAFETY NOTES
<< The machine may not be operated by more
than one person at any given time!
The machine was designed for safe operation
by “one person only”.
<< During the destruction process no other
work may be performed on the machine
(for example cleaning, etc.)!
<< The machine is not a toy, and is not suitable
for use by children!
The overall technical safety concept of this
machine does not provide for any guarantee
regarding hazard-free operation by children.
<< Do not attempt to handle the disc during
a destruction phase! Danger of injury!
<< In case of danger switch the machine off
with the mains switch, or with the emer-
gency switch, or unplug the machine!
<< Always unplug the machine from the mains
power supply before opening the machine!
Repairs may only be performed by trained
personnel!
GB
CD Construction
A CD-ROM is made up of multiple layers. It con-
sists of one 1.2mm polycarbonate disc. Data re-
sides in the “information layer” of pits and lands.
Data is a sequence of 9 unique spaces of lands
and 9 unique sizes of pits. Data is imbedded in
the polycarbonate.
Data is contained in the polycarbonate surface
of a commercially produced CD-ROM disc to a
depth of @ 100 nanometers (0.001mm). To de-
stroy the data 100% in a commercially produced
disc, the grinding process needs to just penetrate
the polycarbonate layer. Data is contained in the
chemical layer on a recordable disc, between
the polycarbonate layer and the protective sur-
facing on the discs. To destroy 100% of the data
contained in a CD-R or CD-RW disc, the che-
mical surfacing above the polycarbonate needs
to be removed. The grinding process of the unit
provides complete 100% destruction of the in-
formation layer of both commercially produced
CD-ROM discs, and CD recordable discs.
DVD Construction Blu-ray Construction
A DVD-ROM consists of two 0.6mm polycarbo-
nate discs bonded together. Like the CD-ROM,
data on a DVD-ROM resides in the “information
layer” of pits and lands. Data is a sequence of
9 unique spaces of lands and 9 unique sizes of
pits. Data is imbedded in the polycarbonate.
Data on a DVD-ROM is contained in the center
of an assembled disc. To destroy the data 100%
in a commercially produced disc, the two poly-
carbonate halves must be split to expose the
information layer. Once split, the same grinding
process as described for a CD-ROM applies.
A Blu-ray disc, the final standard format which
won over international acceptance from the HD-
DVD format manufactured by Toshiba, is similar
in construction to a CD-ROM. The data layer re-
sides near the surface of the disc. The Blu-ray
disc is 1.2mm thick, like a CD-ROM and a DVD,
but unlike the standard DVD, the Blu-ray consist
of one 1.1mm layer, then the data layer, and a
very thin 0.1mm protective layer. To destroy the
digital data content, the unit does not need to
first split the disc but simply to grind down into
the Blu-ray disc slightly below the 0.1mm protec-
tive layer. This new standard for DVD will be the
dominant form factor within the next 1-2 years
while standard DVDs will become less and less
prevalent in the storage industry.
Like the CD-ROM, data on a Blu-ray disc resides
in the “information layer” of pits and lands. Data
is a sequence of 9 unique spaces of lands and
9 unique sizes of pits. Data is imbedded in the
polycarbonate.
Data is contained in the polycarbonate surface
of a commercially produced Blu-ray disc to a
depth of 0.1mm. To destroy the data 100% in a
commercially produced disc, the grinding pro-
cess needs to just penetrate the polycarbonate
layer. The unit accomplishes this.
CD / DVD / BD Construction
Comparison
reflective
layer
protective
layer
information
layer
Label
Acrylic
Aluminium
Polycarbonate plastic
125 nm
1.2 mm
Label
Polycarbonate
Bonding layer
Reflective layer
Polycarbonate
1.1 mm
0.1 mm
Lens
Numerical Aperture = 0.85
Blue Laser Disc
Surface
Cover
Layer
Substrate
Layer
Pits
CD
780-nm Red Laser
Lens Aperture = 0.45
DVD
650-nm Red Laser
Lens Aperture = 0.6
BD
405-nm Blue Laser
Lens Aperture = 0.8
One 1.2-mm
polycarbonate layer
Two 0.6-mm
polycarbonate layers
One 1.1-mm
polycarbonate layer
track pitch
= 1.6 μm
track pitch
= 0.74 μm
track pitch
= 0.30 μm
CD vs. DVD vs. Blu-ray Writing
Optical Disc Information Bearing
Sub-layers Destruction Process
The intimus 005S technology, in combination
with the DVD splitter as applicable, physically re-
moves the information layer from the CD-ROM,
DVD ROM, and Blu-ray disc permanently and
safely while keeping the polycarbonate material
intact.
The intimus 005S design specification requires
the data layer of optical drives to be ground to
250 microns - eliminating forensic recovery of
data by any known means.
Translation of the Original Operation Manual
Übersetzung der Originalbetriebsanleitung
90019 4 1
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