I back up my computer on an external back up. There is always the option of saving things on a cloud storage but if you need the comfort of having a tangible storage I would put it on a thumb drive rather than burning a cd. Many lap tops and tablets don't even have a cd drive anymore but they have multiple USB ports that a thumb drive can be inserted. It is also easy to add additional files to a thumb drive. Back to school sales are a great time to pick up thumb drives.