All artwork for Danger from the Deep, is original artwork, 2D and 3D artwork. However, the compositions made for the following screens:
titlebackgr.jpg, scopewatcher.jpg, depthcharge.jpg, sunken_destroyer.jpg, krupp_docks.jpg, killed.jpg, were compositions, that made use of some samples, retrieved from the following websites, that specify, that to the best of their knowledge, the images included, are public domain images.

www.archive.org
www.history.navy.mil/branches/org11-2.htm
www.ww2incolor.com/

We went to great lenghts to make sure that all material that was used to produce the main GUI screens, was public domain material, as you confirm, by visiting the above mentioned websites, and by reading their respective usage policy terms, and Frequently Asked Questions sections, and sections regarding copyright.
In any case, copies of the usage policy terms documents are included here.
If any of this images isn't after all, in the public domain, we would apretiate if you contacted us imediatly, so that we can remove any usage of the image(s) in question, and furthermore, that you contacted the website in question, where the image was found.
All the material used in the main GUI compositions specified above, was, to the best of our knowledge, public domain material, and we therefore acted in good faith, and under that premisse.

http://dangerdeep.sourceforge.net  has our contacts.

Regarding the two audio tracks used in the main GUI, those particular tracks, also came from www.archive.org, in the section 'Open Source Audio':

http://www.archive.org/audio/audio-details-db.php?collection=opensource_audio&collectionid=moodremastered20040710

This main theme track:
Vera Lynn w. The Casini Club Orchestra-I'm In The Mood For Love 

is licensed under a Creative Commons license, particularly a Attribution-NonCommercial-NoDerivs 2.0 license, whose particular terms can be found here:
http://creativecommons.org/licenses/by-nc-nd/2.0/
The terms, briefly, are:
You are free:

    * to copy, distribute, display, and perform the work

Under the following conditions:
by 	
Attribution. You must attribute the work in the manner specified by the author or licensor.
nc 	
Noncommercial. You may not use this work for commercial purposes.
nd 	
No Derivative Works. You may not alter, transform, or build upon this work.

    * For any reuse or distribution, you must make clear to others the license terms of this work.
    * Any of these conditions can be waived if you get permission from the copyright holder.

Your fair use and other rights are in no way affected by the above.

 This is a human-readable summary of the Legal Code (the full license).



The full license is included here, and can also be found at:
http://creativecommons.org/licenses/by-nc-nd/2.0/legalcode


2nd track:
Betty_Roche-Trouble_Trouble.mp3

Was also retrieved from the OpenSource Audio section of www.archive.org, specifically:
http://www.archive.org/audio/audio-details-db.php?collectionid=Betty_Roche-Trouble_Trouble&collection=opensource_audio

The only references specified are the sources: Public Domain 4U
No license information specified, we assume it's in the public domain, however, if you have any information showing the contrary, we would apretiate if you contacted us, and www.archive.org, so that we can remove this track the soonest possible.


All other 2D/3D artwork in Danger from The Deep, and it's associated data files, are original artwork, copyright of Luis Barrancos and Thorsten Jorden, and are licensed under the GPL 2.0 license.

