Add md5 hash to archive
This mode allows you to add md5 hash files to your photo archive.
A hash sum is a number that can be used to uniquely identify a file and its contents. A hash sum can be thought of as a 'fingerprint' of a file. MD5 hash sum is very sensitive to the changes and can register changes of one bit in very large file. And therefore, the hash files allow to determine were whether changes in your photos. To generate (or test) a hash file requires some time. The rate of generation (or testing) is at about 30MB / sec. Spending a little time, you will reach the full safety of your archive. You can check hash sum at all restore and sync operations or in Test Archive / backup mode. We write hash sum in a separate text file with md5 extension. The name of hash file matches the name of the image file.
We encourage you to periodically check the Archive, with intervals of at least 2 times a year.