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DVD Ripping Tools

cmd:dvdbackup imaging

Conclusion

dvdbackup can make identical copy of dvd disks.

Analysis

$ dvdbackup -i /dev/dvd -M -o . libdvdread: Using libdvdcss version 1.2.8 for DVD access

libdvdread: Attempting to retrieve all CSS keys libdvdread: This can take a _long_ time, please be patient

libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x00000126 libdvdread: Elapsed time 0 libdvdread: Found 1 VTS's libdvdread: Elapsed time 0

Using -F to rip main feature

DVD is ripped as each individual component. No menu, no interactive, etc. Not even have VIDEO_TS.IFO.

$ vlc dvd://`pwd` &

libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: faild to read VIDEO_TS.IFO
libdvdread: Using libdvdcss version 1.2.8 for DVD access
libdvdread: Couldn't find device name.
libdvdread: Can't open file VIDEO_TS.IFO.

[00000245] main playlist: adding playlist item `VTS_01_0.BUP' ( /lfs/cache12/movies/tmp/TMQY/VIDEO_TS/VTS_01_0.BUP )
[00000245] main playlist: adding playlist item `VTS_01_0.IFO' ( /lfs/cache12/movies/tmp/TMQY/VIDEO_TS/VTS_01_0.IFO )
[00000245] main playlist: adding playlist item `VTS_01_0.VOB' ( /lfs/cache12/movies/tmp/TMQY/VIDEO_TS/VTS_01_0.VOB )
[00000245] main playlist: adding playlist item `VTS_01_1.VOB' ( /lfs/cache12/movies/tmp/TMQY/VIDEO_TS/VTS_01_1.VOB )
[00000245] main playlist: adding playlist item `VTS_01_2.VOB' ( /lfs/cache12/movies/tmp/TMQY/VIDEO_TS/VTS_01_2.VOB )
[00000245] main playlist: adding playlist item `VTS_01_3.VOB' ( /lfs/cache12/movies/tmp/TMQY/VIDEO_TS/VTS_01_3.VOB )
[00000245] main playlist: adding playlist item `VTS_01_4.VOB' ( /lfs/cache12/movies/tmp/TMQY/VIDEO_TS/VTS_01_4.VOB )

Test case2

Goal

Try all over again, just to double check that: What would the difference be after burning local files to dvd?

Conclusion

Nothing get changed from making local files into dvd, to ripping them back.

Analysis

difference between local files and iso image

What would the difference be after making local files into dvd iso?

$ growisofs -speed=4 -Z /dev/dvd -dvd-video . Executing 'mkisofs -dvd-video . | builtin_dd of=/dev/dvd obs=32k seek=0' 0.24% done, estimate finish Mon Sep 12 20:05:43 2005 0.47% done, estimate finish Mon Sep 12 19:12:50 2005 0.71% done, estimate finish Mon Sep 12 18:55:10 2005 0.94% done, estimate finish Mon Sep 12 18:44:37 2005

$ mkisofs -dvd-video -o ../test.iso . . 0.24% done, estimate finish Mon Sep 12 20:28:31 2005 0.47% done, estimate finish Mon Sep 12 20:28:31 2005 0.71% done, estimate finish Mon Sep 12 20:30:52 2005 0.94% done, estimate finish Mon Sep 12 20:30:16 2005

sudo mount -o loop /lfs/cache13/movies/temp/test.iso /mnt/tmp1/

tdl=/mnt/tmp1

cd VIDEO_TS/

compare VIDEO_TS directory before and after burn. We can conclude that nothing changes after making local files into dvd iso.

documented on: 2005.09.12