Sound advice. Unfortunately, I recently *did* lose a good chunk of vacation photos . Dumped them to my hard drive, went and filled up another memory card worth of photos a few days later. Before I had time to make a CD backup, my HD messed up and I lost the entire first batch , along with all the edited photos I had worked on. My addition (and it may have already been stated) - don't erase that memory card until you've made *at least* two backups of your images, because once they're gone, they're gone!