How about Handbrake and MacTheRipper? They are both free and Mac compatible software. If it is the case, you need a DVD ripper to do the conversion stuff. Or copy a DVD on Mac to WMV to allow the disc to be customized in your video editing software. You rip the DVD for storage on USB hard drive/flash drive so as to playback on TV or projector screen conveniently you convert DVD movies to WMV to watch DVD movies on stylish Xbox One, Zune, ZEN, PS4 or Surface Pro when you're on the train or trip the digital WMV copy of DVD makes your DVD contents to video-sharing website become possible.
The whole point of ripping DVD into WMV format is to watch it on a device that isn't connect to a DVD player or DVD disc.