AOpen bundles in a copy of Nero Express 7 burning
software on the Nero 7 Essentials CD with the drive. Nero Express 7 is a good program for burning, it has all the features you're likely to need. Although, it would have been nice if AOpen could have included a full version of Nero Burning ROM instead.
Nero's InfoTool software shows us which standards the AOpen DSW1812P Triple format DVD writer
is compatible with.
Dual-layer DVD media can store 8.4GB of data, which
is exactly twice that of its single-layer counterparts capacity of 4.7GB. This
is because Dual Layer DVD media has two dye layers for data recording.
Heat caused by the drive's laser beam modifies the physical and chemical
structure of each dye layer to form patterns which can be read by the same laser
(at a lower intensity) as digital data.
Each dye layer is separated by a
spacer and a metal reflector. The metal layer reflects the laser light, allowing
the drive to 'read' the data by observing the reflections. The first reflector (positioned
after the first dye layer) is semi-transparent; when the laser is focused a certain
way, it will pass through this reflector and continue through to the second dye
layer and bounce off the second metal reflector. This allows the drive
to read the second layer of data. The second reflector is completely
opaque and will not allow the laser beam to pass any further. Thus, by
modulating the frequency of its laser beam, a dual-layer capable DVD-writer can
read and write to dual-layer DVD discs.
There are a couple of ways to indicate dual-layer media. The most common is 'DVD+R
DL' but it's also sometimes indicated as DVD+R9. Obviously, both the drive
and the media need to be dual-layer capable in order to access the
extra storage space afforded by these 8.4GB monster optical discs! The AOpen DSW1812P
Triple format DVD writeris compatible with DVD-/+R
Dual Layer media at up to 8x write speeds.
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