Memory card is
considered as highly portable and useful medium to store image,
audio, video, documents etc. Out of different types of memory card,
SD card is widely used in digital camera, camcorders, iPods, iPhone,
laptops, media players etc. Despite of all that, data loss from SD
card can happen at anytime. Hence it is suggested to always keep
backup to avoid data loss situation. If you don't have any backup
then best possible way to recover lost photos from SD card is by
using professional photo recovery software.

