Free software 24: backup and synchronization

It is not easy to find a good software for backup or synchronization. Most of the softwares are shareware and cost lots of money. Currently I am using Comodo Backup. It is simple but enough for me. Here are some free softwares for backup and synchronization. Feature descriptions come from their official websites.

1. Comodo Backup: http://backup.comodo.com/
   
• Easily backup files or folders anywhere on your computer, network, DVD-RW, CD-RW or FTP server
• Files can be written to a multi-session DVD if it already contains a file with the same name
• Email, FTP, zip and configuration passwords are stored in the registry with encryption
• Protect yourself against ever losing those critical files that took hours to create
• Quickly recover your data in the event of data loss
• Schedule backups to run automatically at a time that suits you
• Synchronized backup feature - save a file and it gets copied instantly
• Send E-mail notifications to team members about the status of a backup job
• Save Disk space by compressing your backups as ZIP files
• Configure in minutes with our intuitive interface
  
  
2. Cobian Backup: http://www.educ.umu.se/~cobian/cobianbackup.htm
   
   • Cobian Backup is a multi-threaded program that can be used to schedule and backup your files and directories from their original location to other directories/drives in the same computer or other computer in your network. FTP backup is also supported in both directions (download and upload).
   • Cobian Backup exists in two different versions: application and service. The program uses very few resources and can be running on the background on your system, checking your backup schedule and executing your backups when necessary. Cobian Backup is not an usual backup application: it only copies your files and folders in original or compressed mode to other destination, creating a security copy as a result. So Cobian Backup can be better described as a "Scheduler for security copies".
   • Cobian Backup supports several methods of compression and strong encryption.
     
     
3. Directory Synchronize: http://directorysync.sourceforge.net/index.html
   
   
   • Directory Synchronize synchronizes the contents of one directory to another. Directory Synchronize GUIThat means you can use it to backup your data on a regular basis to another computer or another harddrive. Or you can use Directory Synchronize to synchronize the data on your laptop with the data on your desktop.
   
   
4. JaBack: http://www.hiteksoftware.com/jaba/
   
   
   • Automate Backups of your important files and folders. The backup set is created in standard ZIP format. This allows flexibility in restoring the data using any zip software to unzip the backup set.
   • Transfer your backup set to a remote location via Ftp or Email it to your mail server.
   • Scheduler software is very easy to use, yet has very powerful scheduling, tasking and automation capabilities.
   • Email Notification of task failure based on task exit code.
   • Local directory monitor allows you to backup data when a file/folder change is detected.
   • Zip files and directories using wildcards on schedule. Can append date/time to filename for archive purposes.
   • Copy files and directories using wildcards on schedule. Can append date/time to filename for archive purposes.
     
     
5. Synkron: http://synkron.sourceforge.net/
   
   
   • Synchronise multiple folders
   • Tabs allow you to have more synchronisations running at once
   • Periodical synchronisations automatically sync your folders in selected intervals
   • Restore files, which were overwritten during the synchronisation
   • Add files and folders to black list to make sure they won't be synchronised in the future
   • Make schedules and backup using multisync
   • Synkron is Free Software