Honestly, I had tried this software several times when my school photos were deleted off from my camera memory card. It really rescued most of my photos back. But, there were still many videos that had not been taken back with success. So, I also tried many other related tools online and got my desired videos back with this other software. Hope my words can give anyone there some useful clues.
I find this post interesting about photo recovery software for a memory card used by a digital camera.It can effectively recover lost, deleted, corrupted or formatted photos and video files from various memory cards. It supports almost all memory card types including a SD (Secure Digital) card, CF (Compact Flash) card, Smart Media card, MMC (Multi Media Card) and other media storage.