1. A computer-implemented method for transferring digital images between devices on a network, the computer-implemented method comprising the steps of: examining a signature list wherein the signature list includes a unique signature for each of the digital images requested for transfer; determining from the signature list the each of the digital images that are present and the each of the digital images that are missing; receiving the each of the digital images that are missing and updated information pertaining to the each of the digital images that are present; checking data integrity to ensure that the each of the digital images was successfully transferred; and repeating for the each of the digital images that was unsuccessfully transferred the steps of receiving the each of the digital images and checking data integrity.