IDSync is a very powerful program to synchronize folders and files from a source directory to a destination. All files in this source are compared to the files in the destination and, in case of being of different date and time, proposed for copying during synchronization. In addition there is the possibility to specify options (filename, age, size) for the file' s qualification for synchronization. Through these features IDSync is perfect for keeping data on a portable storage in actual conditions. Using the Restore function synchronizes source with destination so that the files in the source directory can be updated regarding the modifications made in the destination.