Always good to review what the terms of each is. Newcomers may not understand completely. Same with photo usage and video and music usage - there are various terms of usage for these media types. Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 2/15/2017 9:13:36 A.M. US Mountain Standard Time, hachti at hachti.de writes: One should also be aware of the difference between public domain, open source, free software and the different license models and have an understanding of the applicable rights and obligations. Kind regards Philipp