owing to Maurice advice , i manage to succeed . 1) simple but beautiful
dd if=/dev/rcd0c of=dvd.iso bs=64k growisofs -dvd-compat -Z /dev/rcd0c=dvd.iso this image -rw-r--r-- 1 root tuyosi 3882747904 Jul 6 09:42 dvd.iso and is bigger than image made by mkisofs 2984450048 Jul 6 08:21 ISO/test-2.isot considering speed , it is ok . no need finalizing 2) direct from folda made by dbdbackup growisofs -dvd-compat -Z /dev/rcd1c -dvd-video /home/tuyosi/DVD/test/ no need finalizing 3)i do not understand dao so i dont try burn iso made by mkisofs . sorry . thanks ---- tuyosi
