Dear Nirb,

 If you re-formatted your memory card, then all is lost. If you some how deleted them, then they may be recovered. Do a Google search for recovering deleted files and see what comes up. It's easy to grab a card and "format" it when you're in a hurry, but you just need a system, when the the card is full, turn it over in the holder and you'll know that it's full next time and won't grab it. As cheap as cards are now, just go buy a few 4 Gb cards and label them 1-4, etc. and you'll always know when you are close to a problem,

 Rich Franco

www.richfrancophotography.com