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Re: HD DVD is dead!
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Originally Posted by Kracka
What is that a pic of and what is it showing me?
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When data is burned onto a disk, it creates little burn marks that represent 1s and 0s or on and offs. The disk is a reflective surface so when a laser is reading a disk it looks for reflection and non reflection. The Burn marks make it so that the laser does not reflect (off or 0), while leaving the surface not burned reflects the laser (on or 1).
The pictures show the difference in the space between the rows of the burn. By making the bands closer it allows for more data to be written and read. So a lot of this space is attributed to not only the disk itself but the size of the actual laser when it hits the disk. By makeing the laser smaller increases the space to be burned on the disk.
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