Oops, I deleted that!!!
Often I get asked to save the day and recover files and photos deleted from a camera or memory stick.
Various software already comes with better quality memory cards (e.g. Sandisk Recovery Pro)
Here is a list of software that should do the job, most are free, some are shareware.
Whirlpool wiki
One that worked first go is here –
Smart Recovery
Contact me if you have any questions.