Well, don't know if u have resolved the problem. Here i know a kind of data recovery software which may help u. Open the link and download it: http://www.softpedia.com/get/System/Back-Up-and-Recovery/iCare-Data-Recovery-Software.shtml
It is a professional software for data recovery. Data loss caused by format by mistake, deletion, system corruption or any other unknown reasons are all situations it will fix. After installation, launch it to scan ur card then u will find the lost data.