06-04-2013 07:34 PM
I just came across this forum while Googling for an answer. I don't use SanDisk but Lexar Professional cards (16GB and 32GB). In the past year, I've had two cards go bad on me this way. One could not be reformatted at all, and had to be sent-in for warranty replacement. The second one was successfully reformatted, but in doing so, lost hundreds of photos from a recent client shoot, resulting in having me issue a full refund.
I just wanted everyone to know the issue isn't exclusive to SanDisk.
However, I never experienced these issues with my 8GB cards, only 16/32GB. The cards work fine in camera. My camera takes the shots, records them, lets me view and zoom in. But the issue happens when I try to transfer the files (I use a USB 3.0 Lexar card reader on my iMac). It simply wouldn't mount on two occasions in the past year. Upon pulling the card out (due to inactivity after a few minutes), my Mac would claim I did not eject the disk properly. Upon re-inserting the card, my Mac just claims the disk is not formatted. I then put the card back into the camera, but that too claims it isn't formatted.
Something is happening when one tries to transfer the files using a card reader, and the computer somehow corrupts the file system.
Rare, but it does happen. Seemingly on both the PC and Mac.
My only option is to switch back to 8GB cards, which is a pity, because I've spent over $1000 on the twelve 16/32GB CF cards I use.
06-08-2013 05:23 AM
I have another problem to state with a Sandisk Extreme Pro 32 gb cf card i just bought. When i record with my canon xf100 it stops after every 5:15 min giving me an error and telling me that the camera needs to recover data. Had anyone face the same problem?
10-28-2013 03:28 AM
I have a XF100 too and thi is another error. This camera only supports cards with UDMA 6 and UDMA7. It's because of the internal buffer memory speed. I had to buy a Sandisk Extreme Pro for the XF100 and it works fine... till now... my Extreme Pro 32 Gb is in this "error" state that many people is complaining about on this forum. I could save half of the video clips on the card.
10-28-2013 08:17 AM
I've seen more CF card errors now, with UDMA 6 and 7 cards then the last 8 years. I have about 140GB in many different sizes and brands and never had any card error in the last 8 years... What's wrong? Can it be an issue with Magic Lantern? Or maybe we are storaging next to our cell phones and radiation affects this new cards. Or is it just an issue with new card readers and USB 3.0 thecnology. Any ideas?
11-15-2013 08:17 AM
Partial solution :I had a similar problem, the card corrupted halfway through the shoot.
I used AidFile Recovery : http://www.aidfile.com/
Just a warning, the free version only recovers the first 1GB of data, for any more you need to pay the registration fee which is $69
11-17-2013 01:49 PM
My Sandisk was the same problem! I was seeing the photos with my mother it appeared there one message, and I had no the opportunity to spend my photos elsewhere, for example to my computer! I'm sad because I lost a lot of nice picturesI'm sad because I lost a lot of nice pictures!
12-18-2013 01:02 PM
I had the same problem with a 16GB CF card using my Canon 7D at a wedding. Just as the Bride was turning down the Isle the card stop working and read error...error.... When I took it out and put it in other card readers it would not get recognized at all. I sent it to a recover company here in Michigan and they said it had nothing on it. I know it had almost 300 images on it. I am a professional photographer and I am always looking at what I have shot to check the lighting and manual setting. There were images there. I got it back and found a company through other forums on the internet that can take the chip out of the card and recover the images even if others say there is nothing there. It is call recoverfab out of Germany. I was a bit afraid to send a card to Germany but what did I have to loose. It was already damaged. I sent it about 10 days ago and got an email today that they recovered 267 images of the close to 3 hundred I had on it. They look great. I have checked them out on the website preview. I will downlowd them today. The cost was very resonable. This was wedding footage I needed to recover for my client. Now remember the recovery company I used here (I know the owner of this company he is a friend) could not recover them. Recoverfab saved my images. They were great.
03-28-2014 03:02 PM
Similar problem for me, my 16GB card was working fine until I put it in my computer's onboard card reader to download the photos (something I've done many times before). This time it did not want to read the card, so tried to re-insert it a few times, then got a message saying card needs to be formatted. Tried it in my camera again and got the same error - unformatted card. Unable to access my photos. I still wanted to recover the photos so I did not format my card. Put it in another computer, same error, saying I should format it but at least it picked up the drive, so I clicked cancel, left it in there and downloaded recovery software for $20. This worked, I found my photos and saved them, now I can probably try and reformat my card but I don't trust it anymore. Thanks SanDisk. I don't suppose you will reimburse me for my card and the $20 I spent on recovery software?