BackupToZip is a simple backup program. It maintains a compressed mirror of a set of files in a single large ZIP file. You can then copy this ZIP file to DVD, flash drive, hard disk or CD for backup. Unlike a compression utility, such as WinZIP, if you delete files, the next time you run BackupToZip it will automatically delete those deleted files from the backup archive. It will also automatically update changed or add new files as needed. To restore, you would use a conventional ZIP tool such as WinZIP to fetch replacements for the damaged files from the archive. BackupToZip is much faster than recreating the archive from scratch each time with WinZIP. It also avoids the usual problem of gradually accumulating more and more junk in your backup archive files that have long been deleted from your actual files. With an ordinary archiving utility, come time to restore, you have to manually sort through the accumulated chaff. Advantages The final DVD is a perfectly standard DVD. You do not need any special utilty to browse it or copy files off it, other than an archiver such as WinZip, or the archiver built into Windows. The DVD can also be read on other operating systems without special software, so you can transfer you data to a totally different computer. Nearly all other backup programs use a propietary DVD format that only their software can read. You can use the free BackupToZip with a simple free DVD burning program such as Nero Lite. Most other backup programs, even ones that do no compression, charge you. Using BackupToZip is completely free, other than the cost of blank DVDs or CDs. As a side effect, BackupToZip maintains a hot backup, a compressed mirror of your data files on hard disk. You can recover almost instantly from data loss using this this hot backup, much faster than fetching files from DVD.