Trailblazing with CRW-F1 and DiscT@2!

DiscT@2: The Burning Issue

To grasp how DiscT@2 works, you have to understand how data is burned onto a blank CD-R. Recorders use a process called EFM (Eight to Fourteen Modulation) to burn data on a CD-R. This data shows up on the areas that the laser burns or leaves blank, known as pits and lands. It is the pits which make the recorded parts of a CD look darker than the parts which stay blank. So that the CRW-F1 can create very fine zones (0.1 micrometer minimum) in different shades, Yamaha has bypassed the EFM process which restricts zone size to between 3T (0.83 micrometers at 1.2 m/s) and 11T (3.05 micrometers at 1.2 m/s). The DiscT@2 system enables the laser to burn pits of varying length and breadth, so different shades can be burned onto the CD. On a tattooed CD-R, there will be a zone with data encoded by the EFM process and another corresponding to the blank data-free spaces, where graphics and text will be visible. Remember that once a CD is tattooed, it cannot be rewritten, because tattooing always has to come after the TOC (Table Of Contents), thus making it impossible to add a session.

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