clearing

Here are a few pics from a camera I set up for my Mom. She wanted a pseudo security camera watching the driveway when they winter in Florida. Here are a few visitors that showed up.

Just was wondering if there is anything to be concerned about when deleting or transferring files off of my sd cards? I would hate to have a card in the camera for a few weeks and come to find out I screwed up the formatting or something. The last time I grabbed the entire file (DICM) or...