If you read the full ad, what they are doing is perfectly legal, you are paying for them to put it all on a DVD for you.
Full Version Software : Comes with GNU/GPL and can be Installed on as Many Computers as You Wish/Want
Note to Ebay/VeRo : This software is sold as Open Source Software licensed under the GNU/GPL General Public License and does not violate any Ebay policy or copyright.
The GNU License can be viewed at this address
http://www.gnu.org/licenses/gpl.txt