internet.com
You are in the: Small Business Computing Channelarrow View Sites +
Small Business Technology
» ECommerce-Guide | Small Business Computing | Webopedia | WinPlanet |  »Close
Webopedia.com
Enter a word for a definition... ...or choose a computer category.
 
 

menu
   Home
   Term of the Day
   New Terms
   Pronunciation
   New Links
   Quick Reference
   Did You Know?
   Categories
   Tech Support
   Webopedia Jobs
   About Us
   Link to Us
   Advertising
  

talk to us
   Submit a URL
   Suggest a Term
   Report an Error

internet.com
Developer
Downloads
International
Internet Lists
Internet News
Internet Resources
IT
Linux/Open Source
Personal Technology
Small Business
Windows Technology
xSP Resources
Search internet.com
Advertise
Corporate Info
Newsletters
Tech Jobs
E-mail Offers
commerce
  Be a Commerce Partner
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Understanding CD Burner Speeds

Have you ever wondered what all those numbers mean when you go to buy a CD burner? When you see a configuration that looks like 12x2x24 (three numbers separated by the letter "x"), these numbers indicate the drive speeds of the CD drive. The "x" stands for the transfer of 150 KB of data per second, and each number represents a different action that the CD drive can take. A CD-R drive has two actions -- recording onto and reading from compact discs. A CD-RW drive has three actions -- recording, rewriting (erasing and recording over) and reading. When looking at the drive speeds, the first number ("12" in the above example) indicates the speed at which the CD drive will record data onto a CD-R compact disc. So, in the above example, the CD drive will record data at 12 times 150 KB/second. The second number ("2" in the above example) indicates the speed at which the CD drive will rewrite data onto a CD-RW compact disc. So in the above example, the CD drive will rewrite data onto the compact disc at 2 times 150 KB/second. Typically, the second number, the rewrite speed, is lower than the first number, the write speed, because rewriting is a slower process than writing. The last number ("24" in the above example) indicates the speed at which the drive will read data from a compact disc. So in the above example, the CD drive will read data from a compact disc at 24 times 150 KB/second.

CD-R compact discs are discs that can be recorded on only once. Once the data has been burned, it is permanent and cannot be erased. CD-RW compact discs are discs that can be recorded, erased and re-recorded over. Most audio CD players, especially older models, can only read CD-R discs, so it is best to record music onto CD-Rs. CD-RWs are typically used to store data or used as back up files.

For more information, see:

CD-ROM Drives

Recordable CD Format Overview




Do you have an interesting piece of computer-related trivia that you would like us to explore?
Tell us about it.



JupiterWeb networks:

internet.comearthweb.comDevx.com graphics.com

Search JupiterWeb:

Jupitermedia Corporation has three divisions:
Jupiterimages, JupiterWeb and JupiterResearch


Legal Notices, Licensing, Reprints, & Permissions, Privacy Policy.

Jupitermedia Corporate Info | Newsletters | Tech Jobs | Shopping | E-mail Offers