We all take for granted our memory cards in our DSLR's and that it will do the job its designed to do. As a professional photographer i do my best to ensure all of my RAW photos are backed up and stored correctly.
Recently i have experienced a failure during a shoot. And not being able to afford 2 $8000 camera bodies with dual card slots i shoot with a 5DmK11 and a 7d. During a small wedding recently for a client (and when i say small i mean 2 hours shooting) i had one of the memory cards fail and not recognized by my PC and camera after the event. I also shoot with multiple cards and cameras to ensure if i do have a problem i dont loose everything.
I loaded one of the cards into my PC the morning after the wedding and it was unrecognizable by the computer (mind you it was a fairly new card, i shoot over 20 real estate houses a week and about 30 weddings a year, and never have i had a CARD problem.)
I searched the web and obviously tried recovery software, which only works if your pc can read the card. I then spoke with a data recovery specialist in Melbourne who said they would have a good chance of recovering the data from the card as it was not physically damaged. So i proceeded to mail the card to them and 3 weeks later have them tell me the cards controller was damaged and they cannot by pass the encryption to access the memory module on the card (i actually had researched this prior as well).
Finally i decided to send the card to Germany to a company there called Recoverfab (and this i can tell you is the only one in the world that i could find) http://recoverfab.com/ who had stated that they demount the memory modules in a safe environment and bypass the cards controller and can then access the data. Once the data is recovered you can then download via FTP all the recovered data.
Well a week after i sent the card i received a confirmation email that they had received the media, then not even 2 days later i received a log on link to their website with the photos that were on the card, that No one could recover for me. Not even a Specialists company based in Melbourne....
I must say im more than impressed, the client (who i must admit was very understanding) is over the moon. And i can tell you now (even though i have recently purchased a 5Dmk111 which i use for wedding shoots and it has a dual card slot (which i use the 2nd as a backup) i would highly recommend this service as missing photos on damaged cards are Priceless, be them your own or a client..