Yes, you have heard correctly.
You can recover deleted/lost/corrupted/inaccessible images from memory card inserted within Nikon D3300 camera with the help of Photo Recovery software.
The software is capable or recovering photos, RAW image file format as well as video and audio files from all digital cameras and camcorders memory card. You can also restore photos from hard disk as well.
So, free download now photo recovery from here - Nikon D3300 Camera Photo Recovery, and recover your photos from D3300 Nikon camera.
Important note: Do not add any new data on the card as it will overwrite the existing data and hence you will lose the chances for recovery.