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Cd Dvd Replication, and
CDDVDKING DVD Duplicators information: By selectively darkening
particular points along the cd track, and leaving other areas
of dye translucent, you can create a digital pattern that a
standard cd player can read. In the early '90s, more and more
consumers and professionals were looking for a way to make their
own cd-quality digital recordings. Also widely used are automated
products incorporating robotic disc handling systems which mechanically
load and unload one or more recorders. In the next section,
we'll look inside a burner to see how it accomplishes this task.
Note that the -r/rw format often writes a full lead-out to
the diameter required by the dvd spec, so small amounts of data
(like a very short video clip) may take the same amount of time
as large amounts. The data is recorded to the disc by laser
into a dye that lies above the substrate (the plastic bottom
of the cd) and the reflector (the shiny layer that sends the
modified laser signal back to the rom device).
About Cd Dvd Duplication
Instead, the disc has a dye layer
underneath a smooth, reflective surface. The cd drive
shines a laser at the surface of the cd and can detect
the reflective areas and the bumps by the amount of laser
light they reflect. Playing time of the video may have
little to do with recording time, since a half hour at
high data rates can take more space than an hour at low
data rates. Sometimes disc label printers are included
to produce a handful or even hundreds of finished discs
per hour.
At a steady speed, the bumps move past any point at
the outer edge of the cd more rapidly than they move
past any point nearer the cd's center.
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