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Tuesday, 23 September 2014

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Data Loss in CF Card- Get it Recovered by Photo Recovery


Compact Flash (CF) is a mass storage device format, which can be used in the portable electronic devices. It is widely in use in a range of devices with flash memory and also some with hard disk like a Microdrive.

CompactFlash has gained popularity over the earlier memory card formats. These are supported in the high-end consumer devices as well as the professional applications.

CompactFlash is used in the digital cameras of both Nikon and Canon.

CF compact flash card is generally used in a camera as a memory card, for storing photos. It reads fast and can store up to 4 GB photo files. The capacity of the CF card varies from 128 MB to 64 GB. Generally, they are larger in size, in comparison with the other memory cards like SD, MemoryStick, SmartMedia and xD Picture Card. Per MB cost is lower and the speed is faster. These features lead to its increasing use in the digital cameras.

The original CompactFlash used the parallel ATA bus, but the CFast, which is a variation of CompactFlash and, uses the serial ATA bus. It was earlier built around Intel's NOR based flash memory but has switched to the NAND technology. These NOR based flash possess lower density when compared with the newer NAND based systems.

NAND flash memory is often prone to frequent soft read-errors. The correcting (ECC) and the error checking facility in CompactFlash, which not only detects the error and the block, can be reread.

Wear levelling is another process in the CompactFlash devices. They limit the wear on blocks, with an effective variation of the physical location, where the block is written.

There are professional software like CF card photo recovery software, which are available for the CF card photo recovery from the Compact Flash Card. This can be done, irrespective of whether it is read as RAW, deleted, formatted or unreadable.



Recovery of Files becoming Raw on A CF Card

All the data on the CF card appears as RAW due to this, when the CF card is connected to the PC. This RAW problem on the CF card is caused by various problems. The file type is changed to RAW and is not readable anymore. The other situation is when the card can be accessed but the files are showing RAW format. Reading and copying fails on these files and on clocking these files, a data error can be displayed.

This RAW problem is often fixed, if the CF card is not physically damaged.  The memory card recovery tools can be used for the recovery of such RAW files. The recovered files will no longer be displayed in the raw format but can be restored in their original format. The recovered files need not be saved on the CF card, because after formatting the files are lost from the CF card.


Steps of Photo Recovery 

First of all, we need a connection between the computer and the camera. The CF card photo recovery software has to be downloaded and then installed and made to run. Click to see how

•    The drive that was formatted need to be selected. The camera brand and file type to recover (photo/video/audio) are selected
•    Scanning of the CF Card is done for the lost files
•    A list of formatted files is then shown
•    Then the Recovery process is started
•    A preview of the formatted CF card photos are shown
•    The recovered pictures with the thumbnails are displayed, before these can be saved in the specified location of the destination folder

Other than recovery of formatted files, this software can also recover the deleted file types.

The software are supportive of all CF card brands that are available in the market

Reasons for Data Loss in CF Card


Data loss can happen due to the formatting and accidental deletion of files. Other reasons for data loss are partition deletion causing file lost, files in unreadable drive,  due to RAW drive,  file made inaccessible due to corrupted MBR,  file loss due to a malfunctioning software and a PC, that is wrongly performing. Pressing the reformat button in the camera is another such reason. There are various reasons for such damage - due to turning off the writing/reading, low power of the battery and many other such factors.

Some Safety Tips

The CF card either is damaged or has corrupt file system. There is a prompt from the Windows for formatting the CF card, while it attempts to read and access the card. Before the recovery of the lost photos, we must not attempt this and the message needs to be ignored.

The user must avoid any sort of overwriting of the card, before the recovery operation is completed. This will hamper the process of recovery of the software, if pictures are being taken in the same CF card. The pictures, which are not overwritten, can be recovered and the ones that are overwritten become irrecoverable.

When the digital camera is connected to the computer, then it will not come as Drive letter in the “My Computer” and an external CF card is needed. The lost pictures are recovered after the memory card is accessed.

There are built-in card readers in the laptops and the desktops, available the market.


Author Bio: 
Sumona is a freelance writer. She loves to write on topics related to photography, technology and social media.

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