Abstract: Methods and systems are described for preparing digital media files containing visual and/or audio information for distribution, and for sharing the files so as to prevent unauthorised use and/or distribution. The method comprises: copying the digital media file to create a second media file; selecting at least one part of the second digital media file; removing the at least one part from the remainder of the second digital media file; processing the at least one part so as to obfuscate or camouflage the information therein, and inserting the at least one processed part into the remainder of the second digital media file to create a camouflaged digital media file.