Hardware Quiz #49: Part Two-Cd Burners - Techist - Tech Forum

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Old 11-14-2004, 03:38 AM   #1 (permalink)
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Default Hardware Quiz #49: Part Two-Cd Burners

When a Cd Burner "writes" on the blank CD-R, it basically burns (or darkens) the material of the CD-R. What does the darkened area represent?

Answer: a. 0's

The write laser moves in exactly the same way as the read laser: It moves outward while the disc spins. The bottom plastic layer has grooves pre-pressed into it, to guide the laser along the correct path. By calibrating the rate of spin with the movement of the laser assembly, the burner keeps the laser running along the track at a constant rate of speed. To record the data, the burner simply turns the laser writer on and off in synch with the pattern of 1s and 0s. The laser darkens the material to encode a 0 and leaves it translucent to encode a 1.

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Old 11-15-2004, 12:50 PM   #2 (permalink)
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the data that has been burned on the cd-r in the form "pits" and "lands" that represent 1's and 0's.

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Old 11-15-2004, 12:53 PM   #3 (permalink)
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nope, pits and lands are in like bought cd's......cd-r's have light and dark spots burned by the laser, each representing something, that's why some older CD-players have a hard time reading CD-r's
...read up on it, I did...
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