Why not put meta information into log files?
In many cases it is advantageous to store meta information (such as case numbers, acquisition times, the name of the investigator, etc.) directly in the image file. For example, storing this information in a single file with the image makes it very unlikely that they will become separated, and perhaps the wrong log file being used with an image. In some cases it does make sense to store metadata separately from forensic information. For these cases AFF supports the AFM variant, which stores original data in split raw files and metadata in an accompanying AFF file.
