Have Photos on sd card, says I must format?

[bo0b37]

I installed SD card from camera to upload some photos. Message comes up saying I must format before using. Would lose all photos. HELP

 

[jumanji]

Do the photos show up on your camera? If you are sure that there are photos on it

Try Recuva first to recover your photos. Download Recuva 1.42.544 - FileHippo.com

If not successful then PhotoRec. http://www.sevenforums.com/software/193467-guide-using-photorec-recovery-software.html

Just curious: can you not transfer the photos directly from your camera?