error formating microsd card

[cybernet]

this is what i get :

Error creating partition table: helper exited with exit code 1: Error calling fsync(2) on /dev/sdc: Input/output error

it's a usb card reader with micro sd card and i can't access or format, not with disk utility :mad:

[cybernet]

nobody ?:-(

[sgosnell]

Hard to say from here. It could be a defective card reader, or a defective card. Why do you want to format it?