I have some great luck with Stellar Phoenix FAT & NTFS -
data recovery software. Why don't you try this utility, it will help you in recovering your data.
Demo version is available at
http://www.stellarinfo.com/partition-recovery.htm Through demo version you will be able to see the recovered data, if you find the recovered data over their then to save the recovered data get the full version.
Hope this is going to help you.
Best of luck