2007-08-04 23:54:00 · 6 answers · asked by poojari_v6 2 in Computers & Internet ➔ Hardware ➔ Add-ons
They burn ink, so it changes colour and absorbs light instead of reflecting it.
2007-08-04 23:56:57 · answer #1 · answered by David D 7 · 0⤊ 0⤋
The disc (CD or DVD) is coated with a reflective material. The writing process makes certain parts of the material non-reflective (permanently for normal CDs and DVDs, and temporarily for rewritable discs). Then, the laser (really a laser diode) focuses a beam of light onto the surface of the disc. The reflected light is detected by a photodiode -- a device that modulates the current it allows to pass based on the amount of light incident on it. So the digital information on the disc causes the photodiode to modulate its output current, and it is this signal that the CD or DVD player converts to music.
2007-08-05 08:45:02 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Here is an article about how both CD-Rs and CD-RWs work.
http://computer.howstuffworks.com/cd-burner.htm
It isn't technical, so anyone can easily understand it.
2007-08-05 07:16:10 · answer #3 · answered by Wyoming Rider 6 · 0⤊ 0⤋
The aliens are really behind technology, the ones at area u know.
2007-08-05 06:57:30 · answer #4 · answered by Ace 1 · 0⤊ 2⤋
They BURN the image to the disc.
Don
2007-08-05 06:56:58 · answer #5 · answered by Don M 7 · 0⤊ 1⤋
they burn the layer which reflect the light.
2007-08-05 06:58:23 · answer #6 · answered by Anonymous · 0⤊ 1⤋