Backing up data on an electronic device such as a computer or digital camera is very important. Most electronic equipment is destined to be dropped, leading to the erasure of all data on it. Creating a data backup allows not only the storage, but also the effective recovery of the data when necessary.
There are many backup devices, including floppy disks, hard drives, other computers on the network, compact discs, and DVDs. Each of these has its own conveniences, risks, and capabilities. The use of these devices depends on several factors: the amount of data to be stored, the frequency with which the data is changed, the presence of other backup devices, and the type of files that must be stored.
CD-ROMs are a type of removable backup device. CDs are increasingly being used to store files as they are inexpensive, easy to store, easy to transport, and have different storage capacities. Some CD ROMs can occupy up to 700 MB of data. They are also relatively more secure than floppy disks or system hard drives. However, data stored on a CD ROM cannot be modified. This makes them more ideal for storing permanent data. There are other advantages to using CD ROMs to store backup data as well: they have a long shelf life, are not affected by magnetic fields, and can pass through airport security without any problem. However, they are fragile and require careful handling.
Recorders or CD-ROM recorders have now become very cheap. A basic model is available for less than $1000, while those with optical drivers are more expensive. Today, most backup software programs are compatible with CD drives and CD recorders. There are many types and brands of backup software programs available. These are compatible with basic Windows NT/2000 configurations. Prices range from $30 to $3,700 or more, depending on options and available features. Veritas, Symantec, Acronis, Dantz, and Stomp are some of the popular brands of CD ROM backup software.