As i wrote further from 3.0 on it isnt possible to download any track from music.yoube.com anymore. the new part ist that no download icon will shown 
Dear DVDFab Users: The DVDFab Office will be closed for a few days (10.01~10.07) to celebrate the National Day holidays. This may cause some delays if you have an outstanding support ticket during this time, however, automated functions like purchases and the forum are still running.
Thanks for your understanding and patience and will get back to you after the holidays.