Under a trnd product tests, I test the Samsung SD PRO with 64GB. The memory card I'm testing in a Canon SLR. So I then first made hundreds of photos. The camera then I have connected to my PC and copy the data very quickly on the PC. Chill does it much faster than with my old memory card. Toll I think the 5-protect the memory card, which certainly is the protection against vibration and extreme temperatures most important. Because I can not imagine that I drop into the water my memory card to me - after all, it's in the camera - and I would never throw them into the water. While you should fall down may not happen, but that can happen anyway times. And that one takes the camera in winter or summer outdoors in cold and heat, is much more likely. By X-ray my cards were also never damaged. To test the robustness, but then I have put the memory card in a glass of water and after she had survived that, even for an hour in the freezer of the refrigerator. Everything has it survived without complaint - the photos were unreadable even without any problems and the card can continue to use.