Worm CD features "write once, read many times". Worm disc refers to CD-WORM, which means write once and read many times. The disc of this kind of optical disc memory can be written by the user, but only once; after writing, the information will be permanently stored on the optical disc and can be read multiple times, but cannot be rewritten or modified.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
Worm CD features "write once, read many times".
An optical disc is an item that uses optical information as a storage carrier and is used to store data. Optical disc is a device that uses laser principles to read and write. It is a rapidly developing auxiliary memory that can store various multimedia digital information such as text, sound, graphics, images, and animations.
worm disc refers to CD-WORM disc, the full name is "CD-WOEACompactDisc-WriteOnceReadMany", which in Chinese means write once and read many times. This type of optical disk storage has discs on which information can be written by the user, but only once. Once written, the information is permanently stored on the disc and can be read out multiple times, but cannot be rewritten or modified.
Write once and read many times is a dyeing layer added to the ordinary CD disc. The intensity of the beam emitted by the laser head of the optical disc recorder can be adjusted at any time. changes, thus changing the state of the disc's dye layer. Depending on the data, the laser light burns readable reflective spots on the blank CD disc, and the data is recorded.
Expand knowledge: How to protect optical discs
With the widespread use of VCD and DVD players, almost every house has some optical discs. The optical discs have high-definition and lifelike sound quality and clear Images have been loved by many people, and proper maintenance of discs will allow you to enjoy the pure original sound for a long time.
Due to the influence of weather and temperature, moisture may condense on the surface of optical discs. Before use, you should gently wipe the surface of the optical disc with a clean, soft cotton cloth.
The disc should be placed as far away from dust as possible and away from magnetic fields. When taking it out, it is advisable to pinch the edge and center of the disc with your hands.
If stains are found on the surface of the disc, use a clean cotton cloth dipped in special detergent and rub it gently from the center to the outer edge of the disc. Do not use solvents containing chemical ingredients such as gasoline and alcohol to avoid corroding the internal accuracy of the disc.
Do not touch the disc with sharp objects when it is idle to avoid scratches. If the disc is scratched, it will cause inconsistency between the laser beam and the disc information output and information loss. If there are slight scratches, special tools can be used to polish and restore them to their original appearance.
Due to their thin thickness and low strength when storing optical discs, it is advisable to stack them within 10 sheets. If the number exceeds 10, the discs will easily deform and affect the playback quality.
If the disc is deformed, you can put it in a paper bag, sandwich a glass plate on top and bottom, and press a 5kg weight on top of the glass plate. The flatness of the disc can be restored after 36 hours.
For important discs that need to be stored for a long time, it is especially important to choose the appropriate temperature. If the temperature is too high or too low, it will directly affect the life of the optical disc. The optimal temperature for storing optical discs is about 20 degrees Celsius.
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