What is Optical Disk ?
• Read-only optical disks: The optical disks, which are recorded at the time of manufacture and cannot be erased. CD, CD-ROM, DVD-ROM, and DVD-Video are the read-only disks.
• WORM: WORM stands for write-once, read many. The optical disks that can be recorded by the user only once but cannot be erased. After they have been recorded once, they behave like a read-only optical disk CD-R, DVD-R, and WORM disks are write-once.
• Rewritable/Magneto-optic disks: The optical disks that can be erased and written to with the new information. CR-RW, DVD-RAM, DVD-RW, and magneto-optic disks and Data play are rewritable. Rewritable disks use magneto-optic or phase change technology.
An optical disk offers many advantages over magnetic storage media.
• Highest storage capacity
• Low cost per Megabyte of storage
• Environmental condition tolerance
• High data stability
• Long media life
An optical disk has much more storage capacity on the order of gigabytes, than a magnetic disk. It can hold up to 6GB of data in comparison to 1.44 MB of a diskette. Optical disks are inexpensive to manufacture. Data stored on optical disks is resistant to power surges or magnetic disturbances, such as head crashes or corruption form stray magnetic fields. Hence, they provide high data stability. Optical disks are less vulnerable to extremes of hot and cold as
compared to the magnetic disks. Optical disks have long media life than magnetic disks.
These optical disk becomes inaccessible because of rough handling and may lead to data loss. Stellar information has come with a CD data recovery software which recovers data from damaged cd.
About the Author: About Authur
Park Oskar a free lancer writer for http://www.stellarinfo.com, a leading provider of data recovery software & Services provider. Download recovery software Demo to recover lost, deleted or corrupted digital data.