Recover deleted files on card

Hello, Don't worry. You can rely on this photo recovery software (also recover audio and video files); it can help you recover your lost pictures from your SD card):
Photo Recovery for Windows Users
http://www.uflysoft.com/photo-recovery-win/
Photo Recovery for Mac Users
http://www.uflysoft.com/photo-recovery-mac/
By the way: Before your pictures are retrieved, do not save more files to the device (or memory card) in case the original files (your pictures) are overwritten.
Best wishes!

I guess you're trying to recover deleted photos/videos from your SD card, right? Just insert the card to your computer and run a data recovery program. Give this one a go if you're a Mac user. Recover Digital Photo Music and Video on Mac OS

For that, you must insert the card in an external memory card reader and connect it to your computer. There are lots of recovery programs on the net, (all memory card brands have one) but you could start here:
Memory Card Data Recovery
When the show you what files you could undelete, but they ask money to do so (for another program) please just look for another program. I did find some free ones, but don't know them all. I use RescuePRO from SanDisk.