I downloaded pics from 2 digital cameras. Each had a 1GB SD card, which I removed, put in a cheap USB card reader, and plugged into my machine. I copied all the photos - or so I thought. After ensuring I had copies on 2 separate HDDs, I erased the SD cards. My wife says there are missing photos - and there may be - one of the cameras sufficiently wiped its memory that it resumed counting the photos from zero.
The card-in-stick shows up under fstab as a vfat file system. I only took one photo on each card after reformatting.
Is there a decent Linux program which will allow me to recover the (presumably) lost files?