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Originally Posted by Forseti
Formatting builds or rebuilds the FAT (File Allocation Table) but does not physically delete images although the process of formatting might overwrite some image files. As to why the PC won't recognised the card is another matter for which hopefully someone with more knowledge in the area of computers might be able to help. In the meanwhile I would suggest trying the card in another computer or even in another PC. It could of course be the case that your PC card reader is not capable of reading SD cards especially the high capacity type which is something that does pop up on the forums from time to time.
Assuming that you get the card to be recognised on another computer (especially one that you know can read SD/SDHC cards then you might want to run Zero Assumption on it. This is probably one of the best pieces of data recovery applications available and what's more it's freeware.
http://www.z-a-recovery.com/ |
There are two types of formatting. One is high level which just deletes the Fat file and doesn't affect the infomation stored on the disk. It's what the camera uses when you select format in camera. The other is low level, which you have to select on the PC and will remove all the infomation on a card or disk. In the second case no recovery software will recover it as the files have been removed. In this case a recovery specialist company may be able to recover it but it could cost £1,000s.
The point you make about SDHC is good as most older PC/Card readers won't be able to read this new format, so it's worth trying in a SDHC reader.
