I have had a MBL for about a year, my unit failed last week and I just got a replacement. I upgraded to the latest firmware and began copying my files back. I have a mixture of pictures and videos which i copied into the Shared Pictures directory as I share these over my network. I came back twice to find my windows 7 machine that I was copying from with a fatal error warning mid copy. The NAS was also in a funny state, I couldnt delete the directory it was mid way through copying. I eventually had to reboot the NAS. I redid the copy and the same happened. Again I had to reboot the NAS to delete the files. This time I put video files in the shared video DIR and only photos in the shared photo DIR. then it was fine, my question is are these special directories?