Video/Tweaking
freeware
DVDFab HD Decrypter
DVDFab HD Decrypter copies entire DVD movie to hard disk, and removes all the protections (CSS, RC, RCE, APS, UOPs and Sony ARccOS) while copying. It also comes with full HD-DVD and Blu-Ray support (Removes AACS).
freeware
RivaTuner
RivaTuner is a powerful tweaking utility for NVIDIA based cards. All series of Detonator drivers have a lot of undocumented registry entries. Some of them don't affect anything, but some are very useful. In general they cannot give you big performance boots but they can improve image quality and solve some compatibility problems. This utility will help you to change all undocumented registry entries.