Thomas recommends you try a company called MEMORY WORLD in funan centre. They provide service to help you retrieve back your accidentally deleted information.
AND....if you want to protect yourself from hp or camera photos being used by others illegally, please buy $30 protector. According to Thomas can help prevent people who intentionally or unintentionally took your memory card and used your pictures without your permission.
GOOD LUCK! try not to be naughty naughty take Xrated pictures lah.
or...reformat your memory card as what kevin dejiang suggests.