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Any kind of data are stored on surface of CD or DVD in binary code ( 0100101010101) which is lot of zeros and ones. When this data are "burned" on surface of CD or DVD laser burns holes into it. The holes represents "1" and the empty space between represents "0" . So when laser reads surface of CD it basically translating binary code into your music, film or anything else what you stored.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoData is stored on a CD in tiny blocks, each making up a ring. The concept is very similar to a phonograph record, only the information is digital. A laser is pointed at the CD, and the way it bounces back is measured, indicating the value of each block.
Wiki User
∙ 8y agoWhen reading a CD-ROM, a low power laser beam is focused on the rotating CD-ROM and its reflection is viewed by the read head. When the beam reflects back from the CD- ROM, it's intensity changes as it moves from "land" to "pits." These variations in the laser beam are decoded as data by the CD-ROM drive.
Wiki User
∙ 11y agoThrough The Lens.....
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Functions of laser in the CD ROM drive?
The laser in the drive is the device that actually reads or writes data from and to the CD/CDRW/CDR.
How do you earse songs from a CD?
There are several kinds of CDs. Stamped (store bought) CD that come with data on them, are not writable, or erasable. They are manufactured with the data already on them. CDR discs can be written with a computer drive, but in general, they cannot be erased. They can be damaged where they can't be read back though. CDRW discs can be written to and then erased and re-written. You need software on the computer to do that though. Look into Nero burning ROM. It's a very good program for doing what you want here, assuming you are using CDRW discs.
What is the difference between a cdrw and a cdrw DVD-ROM?
DVD-Rom can play DVDs, a burner can play and copy DVDs. That's right, but what's more, a burner can be a DVD burner or a burning software which is able to convert and burn videos and movies to DVDs so you could play it on your DVD player.
What type of optical drive is installed?
It is a CD, DVD, Blue Ray, CDR, CDi, CDRW, DVDRW, MP3, MP4, or any of a dozen other varieties of laser data readers.
What does a DVD CDRW drive do?
it can be used to write rewritable cd's
What will happen if you insert a DVD in a CDrw drive?
Nothing. It will not be recognized.
Can the Pyle PLD31MU 3 in. TFT Car DVD Player play CDRW's?
The Pyle can play CDRW's containing MP3's and WMA's, but can't play OGG's just yet.
What is the name of the optical disk that you can save to multiple times?
Cdrw dvdrw
What happens when an input operation attempts to read data but there is no data to read?
error reading
In programming data read by programming is called?
Pascal language is used to read the programming data.
What is a type of access that allows to users to read data but not make changes to that data?
Read (-r).
When reading data in a data file the data will be read?
in order it was written.
