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DiscT@2
is an exclusive Yamaha feature that allows text and
images to be drawn on the unused portion of a CD-R disc.
You can now etch a memo, your signature, photo thumbnails
or your company's logo right onto the bottom of the
disc.
In a normal recording, the recording application will
supply a CD recorder with raw digital data, to which
the recorder's hardware adds header and error correction
information, and then converts it to what is known as
EFM (Eight-to-Fourteen-Modulation) patterns. These are
the little bits of data that get written to disc.
Usual EFM Recording Patterns
EFM patterns for CD-R writing vary from a minimum of
3T (0.83 micrometers at a linear velocity of 1.2 m/s)
to a maximum of 11T (3.05 micrometers at a linear velocity
of 1.2 m/s). A combination of patterns, from 3T to 11T,
is used for writing to CD-R. The result (other than
storing your valuable data, of course) is that the burned
area looks darker than the unused area.
DiscT@2 takes things further and breaks free from the
limitations imposed by normal EFM patterns. This allows
for more flexibility in how the laser burns to CD-R,
making the drawing of visible images possible.
Visible
Images Using DiscT@2 Patterns
Since
the CRW-F1 is not a printer (it doesn't use ink to print),
the result of DiscT@2 writing varies with CD-R media
dye. There are 3 types of dye used in CD-R media:
•
Azo: Blue or Deep Blue. DiscT@2 images can be burned
with high-contrast on Azo media.
• Cyanine: Light Blue, Light Green, or Yellow.
DiscT@2 images on Cyanine dye resemble a light image
or hologram.
• Phthalocyanine: Silver or Gold. DiscT@2 on this
media resemble a watermark.
Also
note:
•
Graphic images can only be placed outside of the already-written
area, in order to avoid data loss.
• Creating a CD with DiscT@2 images will permanently
close (finalize) the disc.
Over a decade of research has been invested in achieving
the ultimate in recording accuracy-and it is this accuracy
which is employed in the DiscT@2 process. Drawing visible
designs on a disc is no easy task. This feature is made
possible through Yamaha's industry-leading control of
the elements of recording:
1) Tracking
2) Rotation
3) Laser intensity and positioning.
DiscT@2
is an expression of Yamaha innovation, showcasing its
leadership in CD-R/RW technology
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