Note :NVDVD is not freeware, and a serial number is needed to install NVDVD. The serial number is distributed with certain NVIDIA hardware products.
From the Official Site :
NVIDIA NVDVD offers a complete set of advanced features and end-user controls allowing for the smoothest video playback and total control of the DVD experience. End users can choose from a number of custom designed interfaces, or skins, to suit their style. In addition, the video tool bar features a digital zoom function, multiple playback commands, subtitles and closedcaption decoding for an easy to use, flexible experience.
Of course, a true home theater experience is not complete without incredible audio. By supporting all industry standard DVD sound formats including Dolby? Digital 5.1, Dolby Surround, Dolby Pro Logic? and stereo playback, end users will have the same home theater experience listening to DVDs on notebook PC speakers or on a six speaker surround sound system.