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https://github.com/dustin/dvdbackup

Bug fixes of Olaf Beck's dvdbackup pulled somewhere off the web.
https://github.com/dustin/dvdbackup

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Bug fixes of Olaf Beck's dvdbackup pulled somewhere off the web.

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README 

        
# dvdbackup



dvdbackup is a tool to back up your DVDs in whole or part.



# Usage



## 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.



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 intelligently guess 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



## 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 recommended.



If you specify a chapter that his higher than the last chapter of the

title dvdbackup will truncate to the highest chapter of the title.



## Return values:

* 0 on success

* 1 on usage error

* 2 on title name error

* -1 on failure



# Todo - i.e. what's on the agenda.



Make the main feature guessing algoritm better. Not that it doesn't do

its job, but its implementation isn't that great. I would also like

to preserve more information about the main feature since that would

let me perform better implementations in other functions that depend

on the titles\_info\_t and title\_set\_info\_t structures.



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.