hi, i have nikon D5000. i have a sd card problem

[pumaloco_ashi]

hi, i have nikon D5000. i have a problem . it said that "cannot format sd card. card may be defective. insert another card". what i should do. i already format the sdhd card.

 

[USAFRet]

It's telling you the card may be defective. They do go bad.
I'd get another SD card and try it.