Recover Photos from SD card

Recently my family went for a annual trip and accidentally removed the photos from my digital camera. They asked me if somehow we could recover those photos. As obvious, i did some googling and found out that there are many software available which can recover data from your SD card (most of them are paid and i was looking for any free alternative :) ). Finally i got this one PhotoRec (http://www.cgsecurity.org/wiki/PhotoRec). It do not require any installation, just download the software and start using it. (obviously you should have SD card reader in your system). Thanks to it, I could recover all photos.

While googling, i found other free software as well but didn't give them try, one of them was Mjm (http://www.mjm.co.uk/freephotorecoverysoftware.html)