What program is compatible with Windows 8 in order to remove writing protection when copying DVDs?
According to the official website, DVDFab Copy is already enabled to work with Windows 8 in both 32 and 64bit mode. This is just a solution. Another one is DVD Decrypter. In Windows 8, make sure to install them as Administrator. Both applications can unlock your DVDs. Make sure to set the correct region from the Settings menu or you will have playback issues even if the right codecs are installed on your computer.