All digital photos should be backed up; otherwise they could be lost to a hard disk crash, virus, or other problems.
I transfer photos from the cameras memory card to my laptop to ensure the safety of my photos. I have already learned the hard way that photos on a memory card are not safe. See A Saga of Lost Memories.
I use a clickfree external hard drive to back up photos on my laptop computer. This drive has a nice feature in that it comes with software that will nag you after a week, or any other interval that you choose, if you haven’t backed up your photos. I also transfer my photos to a home PC to create a second backup copy. Finally, I create StoryBooks. If all else fails, I will still have a printed copy of my photos
This strategy has worked well for me. A few years ago when my hard disk crashed and was not recoverable, I lost no photos because I had a current backup.
If I decide specific photos are very important, like our wedding or baby’s first photos, I also create a CD. CDs are the best way to backup photos because they cannot be overwritten and are not vulnerable to mechanical failure, like a hard disk. See A Consumer Guide to Recordable CDs and DVDs for more information. CDs are also less convenient and I admit that I do not usually take this precaution.