I bought this Micro SD back in January 2009 and so far I have not encountered any problems what so ever. I have been abit forceful with the SD card when inserting into the phone and PC but it is still work. There is one small problem that is if you disconnect it from PC via Safely Remove Hardware and then reconnect while the PC or laptop is on it sometimes the Card is not picked up by the computer so you have shut down and restart the PC up again to make it work. I have also owned other Bytestor product i.e usb sticks and have not had any problems with them either.