kaj@Den:~$ mkdir input output; sudo mount -t 9660 -o loop rep-enchanted.iso input; sudo vobcopy -i ~/input/video_ts -o ~/output -O video_ts.vob -t track1
mkdir: cannot create directory `input': File exists
mkdir: cannot create directory `output': File exists
mount: unknown filesystem type '9660'
[Hint] You use -i. Normally this is not necessary, vobcopy finds the input dir by itself. This option is only there if vobcopy makes trouble.
[Hint] If vobcopy makes trouble, please mail me so that I can fix this (robos@muon.de). Thanks
Vobcopy 0.5.14 - GPL Copyright (c) 2001 - 2004 robos@muon.de
[Hint] All lines starting with "libdvdread:" are not from vobcopy but from the libdvdread-library
[Error] Could not find the provided path (/home/kaj/input), typo?

path to dvd:

[Error] Path thingy didn't work '(null)'
[Error] Try someting like -i /cdrom, /dvd  or /mnt/dvd
kaj@Den:~$