DVD Decrypter is a free tool that allows you to decrypt and copy DVDs to your PCs hard disk. From there you can watch them with the likes of WinDVD and PowerDVD, you can write them back to DVD-R / DVD-RW / DVD+R / DVD+RW / DVD+R DL / DVD-RAM media or you can convert them to VCD / SVCD / DivX for burning onto CD-R / CD-RW.
DVD Decrypter can write most types of CD / DVD images via its ISO Write mode, and it supports all the latest writers (including booktype / bitsetting on many of the major ones - i.e. BenQ, LiteOn, NEC, Plextor, Sony). You can even use DVD Decrypter to erase / format your rewritable media!
Advanced functionality can be found in context menus that appear when you right click on various bits of the user interface.

The license of this software is Freeware, you can free download and free use this dvd utility software.