DVD Shrink - DVD Ripping and Backup
DVD Shrink enables you to copy a DVD very easily. Copying a DVD doesn't get much simpler than this. Put DVD into DVD-ROM or DVD burner. Choose either either a Full Disk (1:1) copy or a main movie only. It'll analyze DVD, encode video files , and finally burn a copy of the dvd to DVD±R media. Thus you have a excellent quality dvd copy of your original DVD.

DVD Decrypter
DVD Decrypter is a free tool which enables you decrypt and copy a DVD to your PC's hard disk.

dvdSanta
dvdSanta is an All-in-One software that lets you copy, create, convert and burn your DVD movies. It can copy 9GB double layer DVD movies into a 4.7GB DVD-R disc, can turn your photos into DVD movies with Hollywood style motion effects, can convert other video formats(avi, wmv, vob, asf, DivX, Mpeg,...) into DVD video, can transfer miniDV camcorder tapes directly to DVD video.

DVDFab
DVDFab lets you make perfect quality DVD movie backups the smart way! Backup your entire DVD - including menus, trailers, and special features - on one or multiple discs.

CloneDVD
CloneDVD copies movies in unparalleled picture quality. If it's only the main movie or a complete DVD - CloneDVD compresses even long footage in brilliant quality and at high speed: A special transcoding technology compresses your choice of DVD titles according to your audio and language selection automatically to a freely adjustable target size.