Hello, I have some issues with 4 GB SD card and 8 GB microSD memory card, any help will be appreciated. Problem No. 1 8 GB micro SD card which was in my phone, suddenly my phone reported that there is no memory card inside. I pulled it out and try it with card reader. Windows founded all files that are on the card, but I can't write or delete anything on it, nor I can format it. So all of the files are there, I can open them, I can not write or delete anything, I can not format it. Problem No. 2 I wanted to change SD card that is in my photo camera, as usual I plugged it first in my card reader to see if it is empty. Windows opened it without any problem. I inserted it in the slot of photo camera, and to my surprise it did not detect it. I pulled it out right away and again plugged it in to card reader. Now windows does not recognize it and I can not do anything with it. If someone knows a way to bring these two cards in to life I will be very grateful. I don't if it is relevant, but both of these cards were bought from e-bay sellers, and both of them broke within a year. I have cards that are 5 years old and work without problem.