DVD Fab9 (trial or paid avail ,best nuclear dycrypter)
lots of features( best ) decrypter feature never expires
DVD Shrink 3.2 (free) excellent if it reads the file it reads most.
DVD Smith Movie Back Up (freeware) simple easy to use
DVD Decrypter (freeware) another must have.
HandBrake (freeware) slow but is the Mac Daddy of file converters
Image burn ( free ) explanatory think of it as exact copy for media and data
for more details and links see this thread http://www.avsforum.com/t/1490780/free-dvd-back-up-file-converter-tool-kit-avs-members-please-add-your-dvd-bd-software-choices-and-comments
I started a new thread mainly so newbies and guest visitors could find it
I will in turn link this thread from there Edited by tubetwister - 9/15/13 at 2:29pm