Hello, I've been given a 4GB PNY SDHC, with a number of photos on it. It's not being recognized by any computer. So far, I've run testdisk, which did not seem to see the disk. Disk manager has also failed to even see the disk. Recuva doesn't seem to start at all. Linux can't see anything. EDIT: Ok, for some reason, my computer started trying to read it. Testdisk, my computer, and disk management seem to have all frozen looking for drives. Computer management now seems to have stopped, and come up with a "Generic USB SD Reader", with a red x icon. After all that, testdisk doesn't seem to have found anything aside from my own hard drive .