If you're a good little techie, you probably have volumes and volumes of music and photos backed up to a spare disc or external hard drive. But while you're making room for that U2 album you never listen to and those photos from Aunt Ruth's birthday party, why not consider the safety of something you actually care to keep: your video games.
Backing up your photos is a great idea, no doubt. But consider, for a second, what life might be like if you broke the game disc for Mario Kart. Devastating, right? So whenever you think about backing up your laptop, you might also want to consider burning backup discs of your favorite video games. It'll save you the hassle of shelling out another $60 to replace a broken game you already own.
It's completely legal, under US Copyright law, to create personal copies of the media you've purchased, so long as you're not breaking the CSS copy-protection mechanism employed by most commercial DVD movies, according to the Digital Millennium Copyright Act (DMCA). Of course, you still need to be safe.
If you head out of here and Google "video game backup software," you'll be presented with loads of options. You should know, however, that most free game backup software downloads are rubbish and do nothing but infect your system with a virus. A reliable (and paid) burning and backup software like Nero can get the job done for you. eHow has a great run-down of how to use Nero to make video game backups.