You can copy protected (encrypted) DVDs to your hard drive with DVD Decrypter. Once you've installed this small application, you'll see that it's very easy to use. Just insert the DVD into your optical unit and the program will automatically detect the content. You can select the whole content of the DVD to be copied or you can select only IFO, VOB or BUP files, depending on your needs. You can erase disks, synchronize cache, authenticate or change the regional code. You can Import / Export PSL (Protected Sectors List) files so that you can work out the best methods to backup certain 'problem' discs. All operations are logged so that you may get information regarding the operations' settings or the files copied such as length, size, encryption key etc.
Pluses: Supported file associations for writing: BIN, GI, MDS, CDI, IMG, NRG, CRD, ISO, PDI, DVD, LST, UDI. From there you can choose to watch them with the likes of PowerDVD and WinDVD or you can re-encode them to MPEG1 (VCD) or DivX.