Hello candela,
We don't offer support to old Player v3 anymore; to playback and decrypt new movies, please update to the new versions of DVDFab Player. Also, the latest Player 5 offers better playback experience and other advanced features, you can download it at http://www.dvdfab.cn/download.htm to check it out.
As long as your license is valid, you can continue to use your license on new versions of DVDFab products.
Regards,
Mona