Download of D_back 1.6 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The actual developer of the software is SVA-soft. The program belongs to System Utilities.
From the developer:
D_back is a data backup software designed to automate reserving of your critical data and saving backups to any type of storage media including CD / DVD and remote FTP servers. The program supports FTP backup, Zip compression, external file compressors as plug-ins for data archiving, command-line mode, backup to CD or DVD. D_back has own backup scheduler, which can run as a Windows NT/2000/XP service
You may want to check out more software, such as iMyfone D-Back, which might be similar to D_back.