I was selling my BlackBerry so I wiped the data on my handheld. My understand was that it would not erase my memory card. But when I put the memory card into my laptop. I see folders that have no content. Did I do something wrong Thank you for any help!
There are some PC apps that can maybe recover the info on the card. Try searching google under "recover deleted memory card" or something similar. Some of the programs are paid, but might be a few freebies out there.
You can use tools as mentioned but CAUTION - do not use the card in any way before trying the recovery tools. If you write to the card now, you will overwrite the "missing" files/data. So set it aside until you have time to fix it.
Try taking your micro sd chip out and put it in a PC reader.
Also I have had good luck with ZAR Zero assumptiontion recovery tool, the basic recovery tool to recovery deleted files is free. I believe what you might be encountering is that it formated the entire card and what you need is a more robust data recovery tool.
Make sure as already mentioned that you don't let anything write to the card, if it's just formatted it's possible to recover it as long as nothing get's written to it.
<<Edit>> ZAR may not be freeware, I used it some time back to recover data off a mini-DVD camcorder disc which that part of it is freeware, the file a disk recover might be limited unless you purchase it.