Bibliophile Lass

Can anyone recommend a Linux command-line solution for making copies of (unencrypted) DVDs? (DVD-Video rather than data backups or anything of that type.)

dvdbackup

seems to get the data off the disk OK, but then

mkisofs

complains bitterly when I try to burn it back onto another disk.

dvdrip

alleges it can be run from the command line but this is not in fact true (in its most recent version it won't even give you its version from the command line without complaining about not being able to find a nonexistent display).

lxdvdrip

refuses to compile.