I have recovered a lot of deleted files and broken hard drives over the years, but this time I'm buffled. A friend of mine asked if I could help her to recover some files she accidentally deleted from her 8 GB SD Card. No problems, I thought, and ran the card with Data Rescue 3 (that have helped me a lot during the years). However, Data Rescue couldn't find any files at all on the card. This is strange I thought, downloaded a trial of another rescue application (Mac Data Recovery Guru and Photo Recovery Guru) and tried those. They both found a lot of files on the card. Several hundreds, actually. So, I mailed the Prosoftengineering Support with my problem. But I didn't have the patience to wait for an answer, so I tried Data Rescue again. And Again. And that and some other apps... I got different results every time. I also switched the "anti-delete" switch on the card to be sure that nothing was deleted/overwritten by mistake. Unfortunately I didn't do that from the beginning. However, I wonder if any of you guys know what's up with the card? I am using the built in SD Reader on my MBP 2010. OS X 10.9.1, Data Rescue 3.2.2. The card is quite old, so I'm thinking it maybe is physically corrupted. But why could I see several hundreds of files before, and not now? Anyone that have any good idea what I should try, or have I done anything to the card that I'm not aware of...?