Android - Data Recovery - How to Restore Deleted / Formatted Files on HD Micro SD Card

Take a look at PhotoRec.

There are also similar question on Super User that may help:

• Recover data from SD card
• How do I recover files from an USB flash drive?

Here's the full list of Data Recovery Program links:

• Easeus Pro
• Data Recovery Tool a nice tool but it's not free
• PhotoRec and TestDisk from CGSecurity
• NTFS Undelete (works also with FAT32 unlike the name suggests)
• WinHex
• Active File Recovery
• Scalpel