mmc SD <4Gb> corrupt

pls help me how to work again my mmc SD<4g>
error say it is corrupt..
thanks
Answer #1
Format it…
Answer #2
yup format it and to retrieve the lost file in it try GetDataBack
Answer #3
Try Formatting. If it formats then it’s fine.
Else, It might be a bad card.
Try using recovery software to revive data after you format(If you need any)
Answer #4
run a test with this program…

http://translate.google.ca/translate?hl=en&sl=de&u=http://www.heise.de/software/download/h2testw/50539&sa=X&oi=translate&resnum=2&ct=result&prev=/search%3Fq%3DH2testw%26hl%3Den%26sa%3DG

Answer #5
If you have valuable data on it,Avoid formatting
til you recover it!,Use file scavenger for that:
http://www.google.com?t=5012466