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dvdbackup:
To gather info about the dvd:
dvdbackup -i /dev/dvd -I
Gerneral backup information:
If your backup directory is /my/dvd/backup/dir/
specified with the "-o" flag. Then dvdbackup
will create a DVD-Video structure under
/my/dvd/backup/dir/TITLE_NAME/VIDEO_TS.
Since the title is "uniq" you can use the same dir
for all your DVD backups. If it happens to have a
generic title dvdbackup will exit with a return value
of 2. And you will need to specify a title name with
the -n switch.
dvdbackup will always mimic the original DVD-Video
structure. Hence if you e.g. use the -M (mirror) you
will get an exact duplicate of the original. This
means that every file will be have the same size as
the original one. Like wise goes also for the -F
and the -T switch.
However the -t and (-t -s/-e) switch is a bit
different the titles sectors will be written to the
original file but not at the same offset as the
original one since they may be gaps in the cell
structure that we don't fill.
To backup the whole DVD
dvdbackup -M -i/dev/dvd -o/my/dvd/backup/dir/
This action creates a valid DVD-Video structure
that can be burned to a DVD-/+R(W) with help of
mkisofs version 1.11a27 or later
To backup the main feature of the DVD:
dvdbackup -F -i/dev/dvd -o/my/dvd/backup/dir/
This action creates a valid DVD-Video structure
of the feature title set
Note that this will not result in an image immediately
watchable - you will need another program like dvdauthor
to help construct the IFO files.
dvdbackup defaults to get the 16:9 version of the
main feature if a 4:3 is also present on the DVD.
To get the 4:3 version use -a 0.
dvdbackup makes it best to make a inteligent guess
what is the main feature of the DVD - in case it fails
please send a bug report.
To backup a title set
dvdbackup -T 2 -i/dev/dvd -o/my/dvd/backup/dir/
where "-T 2" specifies that you want to backup
title set 2 i.e. all VTS_02_X.XXX files.
This action creates a valid DVD-Video structure
of the specified title set
Note that this will not result in an image immediately
watchable - you will need another program like dvdauthor
to help construct the IFO files.
To backup a title:
dvdbackup -t 1 -i/dev/dvd -o/my/dvd/backup/dir
This action backups all cells that forms the
specified title. Note that there can be sector
gaps in between one cell and an other. dvdbackup
will backup all sectors that belongs to the title
but will skip sectors that aren't a part of the title.
To backup a specific chapter or chapters from a title:
dvdbackup -t 1 -s 20 -e 25 -i/dev/dvd -o/my/dvd/backup/dir
This action will backup chapter 20 to 25 in title 1, as with
the backup of a title there can be sector gaps between one chapter
(cell) and on other.dvdbackup will backup all sectors that belongs
to the title 1 chapter 20 to 25 but will skip sectors that aren't
a part of the title 1 chapter 20 to 25.
To backup a single chapter e.g. chapter 20 do -s 20 -e 20
To backup from chapter 20 to the end chapter use only -s 20
To backup to chapter 20 from the first chapter use only -e 20
You can skip the -t switch and let the program guess the title although
it's not recomened.
If you specify a chapter that his higher than the last chapter of the title
dvdbackup will turncate to the highest chapter of the title.
Return values:
0 on success
1 on usage error
2 on title name error
-1 on failur
Todo - i.e. what's on the agenda.
Make the main feature guessing algoritm better. Not that it doesn't do
it's job, but it's implementation it's that great. I would also like
to preserve more information about the main feature since that would
let me preform better implementations in other functions that depends
on the titles_info_t and title_set_info_t strcutures.
Make it possible to extract cells in a title not just chapters (very
easy so it will definitly be in the next version).
Make a split mirror (-S) option that divides a DVD-9 to two valid DVD-5
video structures. This is not a trivial hack and it's my main goal
the next month or so. It involves writing ifoedit and vobedit
libraries in order to be able to manipulate both the IFO structures
and the VOB files. Out of this will most probably also come tscreate
and vtscreate which will enable you to make a very simple DVD-Video
from MPEG-1/2 source.
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