So, I have an R4 (original) that I bought in 2008. It came with a Kingston MicroSD 2GB class 4 and a MicroSD card reader called "T-flash", like this: Everything worked fine since then, but some days ago I was formatting the MicroSD with SDFormatter 3.1 (format type full/overwrite, size adjustment off) and in the middle of the formatting ocurred a error, because the card reader stopped working (f*ck). Then, I bought a new one (very different, just to be safe). Well, then I tried formatting the card, but it said that it couldn't. Then I tried to format through Windows (XP) it didn't worked either, tried again then it formatted. But now some weird files show up, like "USBC°¿Mé." and have variable size (even exceeding the card limit), seeing them through properties show 0 Kb size. These files don't have extensions, can't delete them, rename etc and they erase directories and files where they show up. I can still add files to the card (I even managed to have it working on R4 two times) but it's unviable. Now if I format through SDFormatter and do a chkdsk it show as RAW storage type, but if I format through Windows and chkdsk again it says it is FAT type. So what can I do? 2GB cards are cheap, but I want to make sure that there is nothing more I can do. Sorry for my english and thanks.