when ever i format SD card data returns after 2,3 min.....
it captured 160mb and if i copy something it in it after some times its deleted automatically. what should i do to resolve this problem
plz help me
Bin the SD card and buy a new one, they don't last forever and it sounds like yours may be corrupted.
You don't want to be using a memory card that you can't trust. Buy a well-known brand when you buy one.
SanDisk for example.