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--- title: CircumventingARccOS --- [ARccOS][1] is a DVD copy protection mechanism which distributes bad sectors across the disc. Can be trivially circumvented with [dd_rescue][2]: `dd_rescue -A -B 2048 -v /dev/dvd DVDBACKUP.iso` This backs up the DVD in /dev/dvd to the file DVDBACKUP.iso -A tells dd\_rescue to zero-fill bad sectors -B 2048 tells dd\_rescue to skip forward a minimum of 2k when it encounters a bad sector Alternatively: `ddrescue -n -b 2048 /dev/dvd DVDBACKUP.iso` 2k is the DVD sector size. Added: You may need to open the DVD initially with decss. Just start "mplayer dvd://1" then quit and run dd_rescue. Note: GNU ddrescue supercedes dd_rescue. See <http://www.mail-archive.com/bug-ddrescue@gnu.org/msg00038.html> [1]: http://en.wikipedia.org/wiki/ARccOS_Protection [2]: http://www.garloff.de/kurt/linux/ddrescue/ <!-- vim: filetype=markdown -->
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# SideBar * [Home][1] * [Projects][2] * * * <!-- --> * [Code][3] * [Tech][4] * [Network][5] * [MediaCentre][6] * [UAV][7] * * * <!-- --> * [Travel][8] * [Music][9] * [Horse Riding][10] * [Study][11] * [Games][12] * [Other Activities][13] * * * <!-- --> * [Car][14] * [House][15] * [Watch][16] * [Clothing][17] * [Miscellany][18] * * * [1]: /Home [2]: /Projects [3]: /Code/Code [4]: /Tech/Tech [5]: /Network/Network [6]: /MediaCentre/MediaCentre [7]: /UAV/UAV [8]: /Travel/Travel [9]: /Music/Music [10]: /HorseRiding/HorseRiding [11]: /Study/Study [12]: /Games/Games [13]: /Do/Do [14]: /Car/Car [15]: /House/House [16]: /Watch/Watch [17]: /Clothing/Clothing [18]: /Miscellany/Miscellany <!-- vim: filetype=markdown -->
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