Active@ Disk Image

Hard Drive Backup Software

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Users Guide

< User's Guide Contents v.2.0

3. COMMON QUESTIONS

What is the difference between Raw Image and Data Image?

 

Raw image - image containing all drive's data - an exact copy of drive's surface stored in one or set of files. It includes used as well as unused clusters and sectors. This means that all existing and even some deleted files would be mirrored to another location. Raw image has usually size larger than Data Image, but gives full picture of data, no one bit of data is missed in this case.

Data Image - image containing the only used drive's clusters. Data Image is applicable for logical drives and partitions only. When you recover Data Image later on - all unused clusters would be just zeroed. This approach however can save you a space and increase a speed of disk image creation. Since Data Image operates with term used clusters, it applicable to partition (logical volume) only, because only they have file structure. You wouldn't be able to make a data image of entire disk - only raw image.

 

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Active@ Disk Image
Active@ Products

Active@ Boot Disk
is a bootable Live CD/DVD for system recovery purposes.
Active@ File Recovery
recovers data after formatting or loss of partitions.
Active@ KillDisk
is a disk eraser software for secure formatting of hard drives. DoD 5220.22-M compatible.
Active@ Password Changer
is a DOS-based solution for resetting local user passwords.
Active@ Partition Recovery helps to recover deleted partitions and logical disks on hard drives.

 

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