2024-12-23

Data Recovery

Data recovery technologies, data recovery tips, data recovery skills…

CD Optical Storage

DATARECOVERYUNION.COM13 mins

Optical storage is a term from engineering referring to the storage of data on an optically readable medium. Data is recorded by making marks in a pattern that can be read back with the aid of light. A common modern technique used by computers involves a tiny beam of laser light precisely focused on a spinning disc. An older example, that does not require the use of computers, is microform. There are other means of optically storing data and new methods are in development. Optical storage differs from other data storage techniques that make use of other technologies such as magnetism or semiconductors.

The term optical drive usually refers to a device in a computer that can read CD-ROMs or other optical discs.

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RAID 0 Data Recovery

DATARECOVERYUNION.COM013 mins

Raid1. RAID 0 Data Recovery FAQ:

Q: What is a “RAID 0” configuration?
A: A RAID 0 (zero) volume set is a group of hard disk drives that are combined and accessed together based on a pre-defined configuration to allow for “data striping” across multiple drives. The term “RAID” refers to a “Redundant Array of Inexpensive (or Independent) Disks”. RAID 0 drive sets are also described as “striped without parity” and “non-redundant” volumes.

Q: What is meant by the term “disk striping”?
A: Within a disk striping (RAID 0) volume, information will be written evenly , or “striped”, over at least 2 (if not more) disk drives.

Q: How many drives are needed for a RAID 0 volume?
A: To establish a RAID 0 volume, a minimum of at least 2 hard disk drives ar required. Unlike RAID 1, the number of drives used in the array can be an odd or even number.

Q: What is the difference between “hardware” and “software” RAID 0 configurations?
A: Hardware-based RAID 0 uses a physical controller (either as a separate plug-in board or as part of the motherboard) that provides for the striping of data across the drives in the volume. With a software-based RAID 0 volume, the drives are attached to a normal drive contoller and software controls the order and writing to drives in the volume set.

Q: What are the benefits of using drives set up as a RAID 0?
A: A RAID 0 (disk striping) set will use the maximum amount of available storage capacity of each drive in the array, and allows for faster access and retrieval of data.

Q: What are the negatives associated with RAID 0?
A: RAID 0 (disk striping) does not provide any protection against drive failures. If one or more drives fail, all of the information contained on the volume becomes totally inaccessable. On the other hand, with a mirrored disk volume (RAID 1), information is written to the first drive and then to a second (or “mirror”) drive at the same time. If one of the hard drives in the mirror volume fails, the remaining hard drive can be placed in service as a single drive with no loss of information. Similar to a RAID 0 volume, RAID 1 volumes require a minimum of two (2) drives.

Q: Can RAID 0 be combined with another type of RAID, like RAID 1?
A: The combination of striping and then mirroring is referred to as RAID 0+1. In this scenario, the configuration will provide disk striping (RAID 0) across 2 or more drives and will “mirror” the data in real-time to a duplicate drive set (RAID 1). This unique combination will provide fault tolerance, but it does so at the expense of usable storage space. A volume established as a RAID 0+1 volume will need four (4) hard drives at a minimum to be configured.

Q: Can data be recovered from a re-formatted RAID 0 volume?
A: Many times information is still recoverable, depending on how the drives were re-formatted. Re-formatting a volume using Windows, for example, will create what will appear to be a new “clean” volume – but the original data will still be on the disk in the “free and available” space. A low-level format to “wipe” or overwrite every single block takes a considerable amount of time and destroys the original data.

Q: Could data recovery software utilities be used to recover my RAID 0?
A: Perhaps, but it wouldn’t be the safest approach. Most data recovery software will require the read / write heads to constantly travel over areas of the original disk that, if there is any physical damage, could render the surfaces useless and beyond recovery. The safest method of recovering data from a failed or corrupted RAID 0 volume (or with any storage device) is to create a block-level copy of every sector on each hard drive. The copied image is then used to reconstruct the original volume and rescue the required files and directories. This approach, while more time consuming, maintains and preserves the data integrity of the drive media and limits the number of times that the original drive needs to be accessed. It also protects against any writing to the original media, which could result in an inadvertent overwrite of the data that needs to be recovered.

Q: With RAID 0, if one or more drives become corrupted or fail, is data recoverable?
A: In most situations, data will be recoverable. The quality and integrity of the data recovered will depend on the extent of the damage incurred to each failed storage device. The drives will need to be addressed and recovered individually before attempting to address the set as a volume.

2. How Raid 0 Data Recovery?

Use at your own risk, and always make backups of your disks before performing any data recovery procedure.

RAID 0 is simply blocks of data striped between two disks. Block size can be anything, but is typically 64kB (128 sectors) Disk 0 will contain the first sector 0 through 127, disk 1 will contain sectors 128 through 255, and this will continue to alternate throughout the entire virtual disk. One complication can be expected in some cases, and that is the presence of an offset. An offset is a number of sectors before the first striped block. The presence of an offset is common in Adaptec cards. The offset can easily be found by searching for the partition table. When found, simply take the sector number where the partition table is located, and clone the disk to a file starting with this sector.

The next step is to find the stripe size. This is a very critical step and you must be absolutely sure. Typically the stripe size will be the same as the default setting for the card that was used. For instance, a Dell PERC 2 adaptec RAID card has a stripe size of 32K (64 sectors) and an offset of 64K (128 sectors). Use this as your starting point if possible. If you do not know the card type used, it is wise to use 64K (128 sectors) as your starting point as this is most common among all cards.

Now use Winhex to find a location on the disk that is easy to see a pattern. See the example below.

Raid 0 data recovery

Notice above how we have text, apparently from a database of some sort. This text can be used to identify a data pattern. Now look at the current sector (53,721,904). Divide this number by the suspected stripe size in sectors. In this case the stripe size we are attempting to validate is 128 sectors. The resulting number will probably not be a whole number. In this case it is 419702.375. Take the whole number of 419702 and multiply this by the suspected stripe size (128). The resulting number is what we will refer to as the stripe break point. It is necessary to know this simple calculation for all types of RAID except RAID 1 (mirroring).

Find the break point:
53721904/128=419702.375
419702*128 = 53721856

Answer: A break point is located at sector 53, 721, 856 (see illustration below)

raid level 0 data recovery

Notice how at the exact break point of 53, 721, 856 we have a definite difference of data. This is because the stripe is from a separate area of the volume. Not all break points will be this easy. In some cases you will have to look at the actual data and determine if consistency exists. Train your eyes to catch a break point while you are scrolling the sectors using the page down function, and you will become very proficient. You will often have to repeat the steps above on different areas of the disk if the data is too inconsistent to determine the break point.

Once the break point is discovered, you will then be able to start the de-striping process. Using a software utility, such as the hex editor Winhex, place the disk images in the proper order, adjust the stripe size, and clone to a hard disk. Once complete, the disk should be mountable. Refer to the partition and boot sector repair section of this manual if the disk is not mountable, or review the stripe break points.

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Online Data Recovery

DATARECOVERYUNION.COM23 mins

1. What we usually do after data loss?
After data loss, we usually go to the web to find some solutions. Some people will try themselves to do recovery. But most of us do the follows: try to find some recovery freeware or to buy a recovery shareware and get the professional tech support. However, is there any other method you know? Yes, you are right. You can choose online data recovery.

2. What online data recovery can help you?
Recover lost data, including deleted files, damaged or deleted partition, format, Fdisk, corrupt or missing operating system files, corrupt files, missing partitions etc.

3. What should you do during online data recovery?

  • An internet connection (Preferably high speed)
  • A secondary storage device like an External USB hard drive, mapped network drive, secondary data drive or Zip drive(To save your recovered data to).
  • A secondary computer to connect your drive to. (You must avoid writing data to the drive you want recovered at all costs to eliminate the risk of overwriting the files you want to get back)

4. Why we should choose online data recovery?

  • Save time
  • Save money

5. How Online Data Recovery Service Work?

  • They will connect to your computer over the internet using a secure connection (Such as Team Viewer)
  • Once connected, they will perform some basic diagnostics tests to determine the proper steps and procedures to safeguard your data and prevent further damage.
  • They begin rebuilding file structures and looking for your most important files.
  • They will go through the recoverable files with you to verify their integrity
  • You will be provided with a list of recoverable files an a total price
  • You authorize recovery and they begin saving your files
  • Depending on drive size, internet connection speed and type of damage your files can be recovered in 1 to 2 hours.

6. Some Online data recovery companies:

  • http://www.webrecover.com/
  • http://www.recoverdatatools.com/remote-data-recovery.html
  • http://onlinedatarecovery.net/
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3D Data Recovery

DATARECOVERYUNION.COM17 mins

1. What is “3D” Data Recovery?
DeepSpar Data Recovery Systems pioneered the 3D Data Recovery process – a professional approach to data recovery centred on three phases (listed below). DeepSpar has developed training materials, professional services, and industrial hard drive data recovery tools to deal with the challenges of all three phases.

2. Why 3D Data Recovery?
Data recovery industry was in need of a structured, multi-dimensional approach to drive restoration, disk imaging, and data retrieval. Many companies were claiming to do “full” data recovery, but were in fact only using software processes to gather the easiest layer of available data while leaving behind, or worse, destroying, data trapped at deeper levels. The DeepSpar 3D Data Recovery approach addresses drive-level, disk-level and data-level issues so that the maximum amount of data is retrieved.

3. 3D Data Recovery Details:

Phase I:Hard Drive Diagnostics and Repair:
This phase deals with drives that are not responding, and drives that appear functional and can be imaged, but produce useless data.

The solution is to diagnose the drive for damage and make repairs as necessary.

3 types of drive-level problems:

  • Mechanical problems. Most professional data recovery companies have tools and methods for addressing mechanical problems.
  • Electronic problems. Most professional data recovery companies have only a partial solution for addressing electronic problems.
  • Firmware problems. Only the top data recovery companies have the experience and the resources to fix firmware problems.

The DeepSpar 3D Data Recovery Process complements your current methods with a tool that diagnoses mechanical and electronic issues and fixes up to 80%-90% of firmware problems.

Fixing Phase I problems:
DeepSpar recommends PC-3000 Drive Restoration System by ACE Laboratory Russia, which can identify damage using diagnostics, reporting, and specialized utilities.

Phase II:Hard Drive Imaging / Disk Imaging:
This phase deals with drives that have read instability problems, bad sectors or are in danger of failure.

In this phase, the contents of the repaired drive are read and copied to another disk using disk imaging software and hardware. Disk imaging prevents further data loss caused by working with an unstable drive during the subsequent data retrieval phase.

Phase II problems
Most Data Recovery companies are using imaging tools that are designed only for use on “good” drives. This does not provide maximum data for three reasons:

  • The imaging software processes are so intense that they further damage hard drives.
  • The imaging software skips bad sectors and only copies good sectors.
  • The imaging software takes days or weeks to image bad drives.

DeepSpar Data Recovery Systems provides hardware and software imaging tools that handle disk-level issues.

Fixing Phase II problems:
DeepSpar recommend Disk Imager for this phase, because it uses lighter, faster operations to minimize disk degradation, even when reading bad sectors.

Phase III :File System Recovery and Data Retrieval:
In this phase, original files that were copied to the image drive are retrieved using software.

Phase III problems
Using generic data retrieval / file system recovery tools, data recovery companies typically run into the following areas of difficulty:

  • They can’t retrieve files because of a corrupt file system.
  • They can’t guarantee the integrity of the files they have recovered.
  • They can’t handle corrupted files that have been retrieved.

The DeepSpar 3D File System Recovery Process provides tools that address drive-level, disk-level and data-level issues so that the maximum amount of data is retrieved.

Fixing Phase III problems:
DeepSpar Data Recovery Systems offers a number of tools to address the issues that arise in Phase III:

* File system recovery: Corrupted file system structures such as corrupted directories or boot sectors are rebuilt using PC-3000 Data Extractor.

* File verification: Recovered files are tested for potential corruption. DeepSpar provides a file verification tool that generates a report which can be delivered to the client.

* File repair: If necessary, corrupted files are repaired if data could not be fully restored in previous phases, or if corruption has occurred because of partial restoration, disk imaging is repeated to retrieve more sectors.

Related Links:

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“3+1” Data Recovery

DATARECOVERYUNION.COM211 mins

1. What is “3+1” Data Recovery?
SalvationDATA Data Recovery Solutions pioneered the Broad Sense Data Recovery Approach – A professional approach contains three plus one (3+1) aspects (listed below). SalvationDATA has now developed manufacturer-level tools, in-depth trainings & materials and tech-support services to deal with the challenges of all 3+1 aspects.

2. Why “3+1” data recovery?
Data recovery industry was in need of a more comprehensive approach to the broad sense data recovery need that handles all aspects: microcode, hardware component, bad sector/ instable head and file system. Many companies were claiming to do “full” data recovery, but were in fact only doing the data-level recovery probably by downloading software, while in the meantime 40%-50% potential data on the lower level is left behind, or worse, gone forever. The SalvationDATA 3+1 Data Recovery approach addresses hardware-level and software-level issues like microcode, hardware component, bad sector/ instable head and file system so that to make sure the maximum amount of data is retrieved.

3. “3+1” Data Recovery Details:

Step 1. Drive diagnosis & restoration
This stage repairs drives that are undetected, not responding, and drives that can be accessed but produce null data.

Being the primary stage of the Data Recovery flow, another use of it is to carry out all round diagnosis to the drive and decide which stage to go.

Challenges:

  • Mechanical component problems
    This has been widely acknowledged and practiced. But still there are two difficulties remains: maintain multiple platters alignment with each other when doing platter swap; platter extraction from new design drives with spacers between platters. 3+1 data recovery flow deals with this issue on Stage +1 specially using Stage 1 tool.
  • Bad sector problems
    Bad sector will not be repaired in case you still need to recover data from the target drive; but we can’t just skip those bad sectors directly since “bad” sectors contain valuable data. 3+1 data recovery flow deals with this issue on Stage 2 specially using Stage 2 tool.
  • Microcode problems
    Includes problems of PCB chip microcode as well as SA microcode. This will be the problems that Stage 1 addresses.

The SalvationDATA 3+1 Data Recovery Process complements your current methods with a tool that diagnosiss mechanical and electronic issues and fixes up to 80%-90% of firmware problems.

Tool you need for Stage 1 solution:
SalvationDATA recommends HD Doctor Suite, which can diagnosis different drive problems for review, and provides specialized utilities to handle with microcode problems.

Step 2. Disk Data Extraction
This stage deals with drives that have read inability problems because of physical/ logical bad sectors on SA and/ or user area.

In this Stage 2, we read contents of each sector physically byte-to-byte, including good and bad, and copied to a good disk using data extraction software and hardware. Disk data extraction enables you to work on a stable HDD in next stage coming-Stage 3: Data Retrieval. Another most important task of Stage 2 is to handle HDD with SA media defects, which cause the SA microcode to be collapsed and irrecoverable because the media storing the module can not be read or written. The solution is to boot the drive without using the drive’s SA and extract the user data.

Challenges:

  • The ordinary user-level repeated-read access method that used by imaging software bring a risk of damaging the disk and head, making data lost irretrievable.
  • The imaging software skips bad sectors directly in order not to get hang.
  • The imaging software takes days or weeks to image bad drives. Even so it gets hang most of the time in case the drive has lots of bad sectors.
  • The imaging software can not handle those drives undetected because of SA media defects.

Most data recovery companies are using imaging tools only for Stage 2, and those tools are designed only for use on “good” HDD without media defects and instable heads. Therefore they still can’t get the maximum data (even damaging deeper layer data) even though the have been proficient in the previous Drive Restoration stage.

SalvationDATA Data Compass provides hardware-software complex data extraction tool that handle all the above challenges.

SalvationDATA provides you with comprehensive data extraction tool.

Tool you need for Stage 2 solution:
SalvationDATA recommends Data Compass, which adopts high-end technologies and protocols to perform SA analog for initializing/boot HDD, minimize disk degradation and hang in read attempt to bad sectors.

Step 3.File system rebuilding & Data Retrieval
This stage involves file system rebuilding and user data retrieving.

The traditional practice of this final stage happens only after the disk imaging, that is to say even what you need is only a few files, still you need to perform a complete disk image, because Stage 3 software can not work on patient HDD, which takes a lot of time. Now a better way pioneered by SalvationDATA allows you to retrieve specific files directly without imaging.

Using traditional data retrieval / file system recovery tools, you will have the following headaches.

Challenges

  • You can’t deal with file retrieval out of a corrupt file system.
  • Most of the files you retrieve contain useless or no content, you can not tell which ones are usable.
  • You have to waste lots of time in disk imaging even though what you need is just a few specific files.

The SalvationDATA 3+1 File System Recovery Flow provides advance tools that enhance and innovate in your current practice in data retrieval.

A Win-Win-Win result: SalvationDATA gets reputation, you get profit, and your client gets the data.

Tool you need for Stage 3 issues solution:
Having bad experience like the old saying “suffer defeat on the verge of victory”? SalvationDATA recommends Data Compass, which handles all your headaches in Stage 3.

Step 3+1. Mechanical component exchanging
An extra but very important stage follows the Stage 1 diagnosis. This special stage handles with hardware component issues which can’t be repaired but the only solution is to have the components exchanged using donor parts.

Special extra stage handles the deepest layer of HD malfunction

This stage is to be carried out after the drive diagnosis in Stage 1. Finishing the Stage +1 will take you back to Stage 1 for diagnosis again to decide which stage to go.

Challenges

  • Head stack problems. How to dismount the head stack and then reinstall properly without damaging the sensitive heads is the key, and also most of us cares about.
  • Spindle motor problems. Only a few top professionals with plenty of practical experience can handle spindle motor problems.
  • Platter alignment & spacer problems. So far they are still a headache for most of us without proper tools.

SalvationDATA 3+1 Data Recovery pioneers an independent stage which handles with the mechanical component problems.

Tool you need for Stage +1 solution:
SalvationDATA recommends HD HPE PRO, which solves the annoying headaches in mechanical component exchanging with specially designed utilities.

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Best Data Recovery Softwares 2009

DATARECOVERYUNION.COM03 mins

Digital Rescue Premium
Price: $49.99
An easy-to-use interface and “Smart Wizard” make finding and restoring your accidentally deleted photos, videos, music, emails and other files easier than ever before.

Recover My Files
Version: 3.9.8.6307
Price:$69.95
Recover My Files data recovery software will easily recover deleted files emptied from the Windows Recycle Bin, or lost due to the format or corruption of a hard drive, virus or Trojan infection, unexpected system shutdown or software failure.

Data Recovery Wizard
Version: V4.3.6
$69.95
Advanced data recovery software to do format recovery and recover deleted files emptied from Recycle Bin or lost data due to partition loss or damage.

Windows Data Recovery Software
$129.00
Disk Doctors Windows Data Recovery is much more then an simple undelete software or a file recovery program. Its versatility begins when other software fails to recover or even is not able to display data.

Handy Recovery
$49.00
Handy Recovery™ is an easy-to-use data recovery software designed to restore files accidentally deleted from hard disks and memory cards.

ParetoLogic Data Recovery Pro
$49.95
Bring accidentally deleted emails and their attachments back to life. You can also recover a wide variety of other file types.

Quick Recovery
$69.00
Quick Recovery FAT & NTFS is professional windows data recovery software & rated as best data recovery tool to undelete data, recover deleted files & recover deleted data from formatted partition of Windows Operating System.

GetDataBack
Version:3.64
For NTFS:$79
GetDataBack is good data recovery software that scans your hard drive and then allows you to browse through options to find and view files before you actually recover them.

R-Studio
$79.99
an ideal file recovery solution for IT specialists and advanced users who need to recover or undelete lost data .R-Studio offers many tools to help you to find your lost or deleted data. With this product you can recover data over a network, make virtual RAIDS and recover data off a CD or DVD.

Restorer2000
Version:3.3
$49.99
Restorer2000 3.3 is the reliable data recovery utility that provides you with powerful undelete, data recovery and disk restoration functionality.

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Data loss reasons and recovery solution in Macintosh operating system

DATARECOVERYUNION.COM03 mins

Mac File RecoveryMacintosh is considered to be most important and complicated operating system developed by Apple Inc. This is one of the modern operating systems facilitating its users with all the advanced features.

Local File systems used by this operating system are UFS (Unix File System), UDF (Universal Disk Format), HFS (Hierarchical File System) and HFS + (Hierarchal File System+). These file systems are based on some of the enhanced features for the management of tasks to be performed by operating system and ultimately providing ease to the Mac user.

This Apple Mac OS is prone to too much damages, although it is designed keeping in mind all its major aspects of security. Mac file system suffers from many physical and logical damages due to fire, flood, power surges, virus attack and human error. They affect the normal working of operating system.

In most of the scenarios damage to operating systems result in loss of some of the important files and folders. It creates great panic and frustration for the user.  Other major issues which lead Mac OS to data loss situation are listed below:

One of the major parts in data loss is played by some viruses, which attack directly at low level of the file system and duplicate all the content saved in the data files. In addition, it disturbs the whole working of the operating system.
If machine was not properly shutdown then some of the data files might be deleted and inaccessible.
Some of physical damages caused by fire, water and moisture exposure damage not only the system but also most of the data files, which can only be recovered by data recovery specialist.
Mac OS does not work when volume header is corrupted.
Corruption of partition table.
Failed master directory block does not initiate certain files from being opened.

Some of the logical faults can be overcome using efficient and best data recovery software. Data lost from physically damaged systems needs to be recovered from a professional data recovery service provider.

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Best Drive Backup Softwares 2009

DATARECOVERYUNION.COM06 mins

Drive Backup1. Shareware: PC BackUp
Publisher: Migo Software, Inc.
Version: Pro 10
Price: $59.99
Description:
Backup what you want, when you want. Create an Image Backup of your entire PC to quickly get your system up and running in the event of a system crash or hardware failure or backup only the individual files and folders you need. Smart Select technology allows you to Easily backup your Photos, Music, Documents or Emails with a couple clicks of the mouse.

2. Shareware: Genie Backup Manager Home
Publisher: Genie-Soft Corporation
Version: 8.0
Price: $49.95
Description:
Backup your photos, media, email and personal files and folders effortlessly and keep in a secure location and recover your data in an instant. Perform a complete backup of your system (Disaster Recovery) or simply backup only your personal data.

3. Shareware: Acronis True Image Home
Publisher: Acronis Inc.
Version: 2009
Price: $49.99
Description:
Acronis True Image Home 2009 complete PC protection: back up your entire PC, including the OS plus your data, applications, pictures, video, financial documents, settings and everything!

4. Shareware: NTI Backup Now 5 Advanced
Publisher: NTI
Version: 5
Price: $69.99
Description:
File-Level Backup, Image, Continuous, and more. Advanced features include Open File and multiple PC backup. Select the drives, files, and/or folders you want to keep backed up.

5. Sharewa5. re: TurboBackup
Publisher: FileStream, Inc.
Version: 7.1
Price: $49.95
Description:
The new release 7.1 comes with many easy-to-use backup templates: Registry, Photos, Videos, Documents, iPhone, iTunes, Music, Palm, E-mails, Google, Mozilla, Skype, and more. With one click you can back up your critical data quick and easy.

6. Shareware: PowerBackup
Publisher: CyberLink Corp
Version: 2.5
Price: $39.95
Description:
Three backup methods – full, differential, and incremental is available to perfectly suit all your needs. Full is a complete backup of all files. Differential mode archives only new or changed files. Incremental mode archives new files created since the last backup.

7. Shareware: Norton Ghost
Publisher: Symantec Corporation
Version: 14
Price: $69.99
Description:
A complete system backup tool, not just a data backup tool. This is one of the few backup software programs that makes full image backup. Symantec’s Norton Ghost does an excellent job and allows you to customize a partial backup—by backing up individual files and folders.

8. Shareware: AISBackup
Publisher: Aquarius I. S. Consultancy Limited
Version: 2.7
Price: $37.50
Description:
AISBackup provides a managed backup of data and the Operating System of Windows PC’s and Server’s to CD, DVD, Internal and External Disk drives, Networked drives, FTP Servers and all other media that looks like a disk to Windows.

9. Shareware: Handy Backup
Publisher: Novosoft Inc.
Version: 6.0
Price: $55
Description:
Handy Backup™ is an easy-to-use program designed for an automatic backup of your critical data virtually to any type of storage media including CD/DVD-RW devices and remote FTP servers. You can use Handy Backup to make a reserve copy of any valuable data on your system. Special addons are provided to facilitate the backup of MS Outlook, system registry and ICQ files. Restoring is as easy as clicking a button, but you can also use a number of advanced options. The program can be also used to synchronize files between two computers on a network.

10. Shareware: Zip Backup to CD
Publisher: Datahjaelp
Version: 3.20.1
Price: $27
Description:
Zip Backup to CD is a data backup software designed to backup your data files to CD/DVD, using the standard Zip file format, allowing backup files to be viewed and restored with most zip file utilities.

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CD Optical Storage Glossary of Computer Terms (Letter E)

DATARECOVERYUNION.COM02 mins

EISA
Extended Industry Standard Architecture. A 32-bit bus architecture standard designed for PC compatibles to take advantage of newer and faster microprocessors. Supports older AT style expansion boards. IBM’s Micro Channel Architecture (MCA) does not.

EMS
Expanded Memory System. A specification developed by the Lotus, Intel and Microsoft (LIM) corporations for application programs to address added memory resources above the 640- k byte limit of PC and MS-DOS operating system. EMS helps provide maximum performance of memory-intensive applications such as Lotus 1-2-3 and Microsoft Windows.

Encoding
Storing information according to a file specification for an intended retrieval suitability

EPP
Enhanced Parallel Port.

ESDI
Enhanced Small Device Interface. A standard for connecting disk drives and tape drives to a computer. This standard enables the drive to transfer data at high speeds.

Exclusion
The opposite of selection. An editing technique to select desired areas of an image by ruling out all undesired areas. Particularly useful in selecting and removing an object from its background.

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Best Disk Image Softwares 2009

DATARECOVERYUNION.COM07 mins

This is the list for the most popular Disk Image sharewares worldwide. And also you can find the Disk Image Freewares from another post in my blog.

1. Shareware: Acronis True Image
Version: 2009
Acronis True Image Home 2009 is an award-winning backup and recovery solution for a good reason: it protects your PC after just one click and allows you to recover from viruses, unstable software downloads, and failed hard drives. Create an exact copy of your PC and restore it from a major failure in minutes, or back up important files and recover them even faster.

2. Shareware: Drive Backup
Version: 9.0 Pro
Protect your hardware, undo software malfunctions or crashes, and safeguard your data with our latest Drive Backup 9.0 Personal Edition. This feature-rich software easily restores your system whenever disaster strikes, and optimizes storage utilization to keep your system running at top speed.

Along with reliable entire disk backup, this powerful application provides you with a new approach to file backup and enhanced recovery tools. Use its Smart Backup to free up disk space.  You can now recover/restore your PC or laptop with our handy bootable, portable rescue USB flash drive.

3. Shareware: OO DiskImage
Version: 3 Pro
Create images and restore entire systems quickly and easily. All the standard and professional features are combined into one single product. You can adjust all the functions to suit your requirements, with options that range from fully automatic to individually customized. Thanks to an improved user interface, it’s now possible to create and manage images even faster. Creating images on a regular basis is really the best way to protect your data from being lost unexpectedly – with O&O DiskImage 3 Professional Edition, you are fully equipped to face any emergency!

4. Shareware: Norton Ghost
Version: 14.0
Protects your computer with advanced backup and recovery. Full system backup (disk image)—Backs up everything on a hard drive or partition.

5. Shareware: R-Drive Image
Version: 4.4
A potent utility providing disk image files creation for backup or duplication purposes. A disk image file contains the exact, byte-by-byte copy of a hard drive, partition or logical disk and can be created with various compression levels on the fly without stopping Windows OS and therefore without interrupting your business. These drive image files can then be stored in a variety of places, including various removable media such as CD-R(W)/DVD, Iomega Zip or Jazz disks, etc.

6. Shareware: Image for Windows
Version: 2.25
An affordable, reliable drive image backup and restore solution that provides an easy and convenient way to completely backup all your hard drive’s data and operating systems. Your backups can be saved directly to external USB and FireWire™ drives, to internal or network drives, and even directly to CD or DVD. The Image for Windows package includes an easy-to-use MakeDisk wizard for creating a recovery boot disk. To restore your data and operating systems back to the way they were when the backup was created, simply boot the recovery disk and restore the partition(s) or drive(s) you need to recover. It’s that easy.

7. Shareware: Exact Image
Version: 2009
Protect your data from accidental loss and restore the whole system in case of OS crash with 7tools Exact Image 2009.

8. Shareware: DFSee
Version: 9.xx
This is a ZIP file with the latest ISO image for the bootable CDROM, plus a small program that is used to add your existing registration key to this image. Instructions to use this program and burn the CDR are included in the ZIP file as well.

The bare ISO image contains a temporary key, expiring about 60 days after release. If you have a registration, it is advised to burn the ISO to a CD after adding your own key with the supplied utility.

9. Shareware: Active@ Disk Image
Version: 3.2
Software that makes an exact copy of any PC disks (HDD,USB,CD,DVD,Blu-ray etc. . . ) and stores it into a folder. The disk images may be used for backups, PC upgrades or disk duplication purposes.

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