Many Live CDs or DVDs provide a means to mount the system drive and backup drives or removable media, and to move the files from the system drive to the backup media with a file manager or optical disc authoring software. This can be accomplished using a Live CD or DVD by booting directly from a ROM instead of the corrupted drive in question. (typically, on a single-drive, single- partition, single-OS system), in which case the ultimate goal is simply to copy all important files from the damaged media to another new drive. The most common data recovery scenarios involve an operating system failure, malfunction of a storage device, logical failure of storage devices, accidental damage or deletion, etc. 3.1 Corrupt partitions and file systems, media errors.
