Hello:
My system is WinXp SP3.
I deleted a lot of pictures from my SD card.
I still used the SD card to store pictures.
After a few weeks, I wanted to rescue the pictures I had deleted before.
I used Recuva v1.28.424 with Deep Scan, but couldn't find anything.
I used Zero Assumption Recovery 8.4 Limited Evalution Version to scan, then several hundreds of deleted pictures appeared.
There were still four corrupted pictures not to be recovered.
Zero Assumption Recovery is better than Recuva.
http://www.z-a-recovery.com/
I hope Recuva can contend with Zero Assumption Recovery for excellent data rescue software.