This appendix includes further information on the backup software mentioned in this book. These lists are not exhaustive, and backup software is updated frequently. By the time you read this, any of these applications might have gained new features, possibly even putting it into an entirely different category. So, before making a purchase, check the developer's Web site for current features and prices. In many cases, you can download a free, time-limited demo to try the software out before making a purchase.