SD Card Needs Formatting: How Can I Backup Files on My SD Card before Formatting?

I have about 1GB data on my 8GB SanDisk SD card. I was about to download some movies to my card just now, but the movies cannot be saved to my SD card because I got a message to say SD card needs to be formatted. Now, I cannot even copy any data from the SD card. I tried to plug out the SD card from my computer and reinserted it again, but every time I got the same error message to ask me format the memory card. How can I backup the files from my SD card before formatting it?

Can I Get Data off an SD Card Which Is Not Recognized on My Computer?

Problem: SD Card Is Not Recognized by My Computer

As we know, an SD card is a good choice for data storage since it can be used on many devices. However, it is not very convenient to transfer data from an SD card to anther device. For example, if you want to transfer a photo from this mobile phone to another one, you may use Bluetooth on the cell phone. However, what if you want to transfer data from an SD card on mobile phone to the card on a digital camera? As far as I know, the fastest and most effective way to transfer data form an SD card to another device is to connect the SD card to a PC and copy or move the data to another device.