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Label on disk, plus player behavior consistent with ARccOS corruption.
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'''ARccOS''' is a [[copy-protection]] system developed by [[Sony]] used on some [[DVDs]]. Designed as an additional layer to be used in conjunction with [[Content Scramble System]] (CSS), the system deliberately creates corrupted [[Cylinder-head-sector|sectors]] on the DVD, which cause copying software to produce errors. Normal [[DVD players]] never read these sectors since they follow a set of instructions encoded on the disc telling them to skip them. Less sophisticated DVD copying programs do not follow these instructions and instead try to read every sector on the disk sequentially, including the bad ones. [[Slysoft]]'s [[AnyDVD]], [[Fengtao Software|Fengtao]]'s [http://www.dvdidle.com/free.htm DVDFab Decrypter], [[RipIt4Me]] + [[DVD Decrypter]] + [[FixVTS]], [[MacTheRipper]] (freeware), along with [[VLC media player]]<ref>{{cite web | title = HOWTO Backup a DVD | work=Gentoo Linux Wiki | url = http://gentoo-wiki.com/HOWTO_Backup_a_DVD#vlc | accessdate = 2007-04-16 }}</ref>, [http://www.garloff.de/kurt/linux/ddrescue/ dd_rescue] and [[MPlayer]]/[[MEncoder]] (for Linux) are usually able to overcome ARccOS.
'''ARccOS''' is a [[copy-protection]] system developed by [[Sony]] used on some [[DVDs]]. Designed as an additional layer to be used in conjunction with [[Content Scramble System]] (CSS), the system deliberately creates corrupted [[Cylinder-head-sector|sectors]] on the DVD, which cause copying software to produce errors. Normal [[DVD players]] never read these sectors since they follow a set of instructions encoded on the disc telling them to skip them. Less sophisticated DVD copying programs do not follow these instructions and instead try to read every sector on the disk sequentially, including the bad ones. [[Slysoft]]'s [[AnyDVD]], [[Fengtao Software|Fengtao]]'s [http://www.dvdidle.com/free.htm DVDFab Decrypter], [[RipIt4Me]] + [[DVD Decrypter]] + [[FixVTS]], [[MacTheRipper]] (freeware), along with [[VLC media player]]<ref>{{cite web | title = HOWTO Backup a DVD | work=Gentoo Linux Wiki | url = http://gentoo-wiki.com/HOWTO_Backup_a_DVD#vlc | accessdate = 2007-04-16 }}</ref>, [http://www.garloff.de/kurt/linux/ddrescue/ dd_rescue] and [[MPlayer]]/[[MEncoder]] (for Linux) are usually able to overcome ARccOS.


ARccOS had reportedly been discontinued by Sony in February of 2006.<ref>{{cite web | title = Macrovision's RipGuard Shows Consistent Use By Disney | author=Kate DuBose Tomassi | work=Forbes Magazine | date=2006-03-10 | url = http://www.forbes.com/markets/2006/03/10/macrovision-ripguard-0310markets08.html}}</ref> However, several high-profile releases since then have used it, including the [[dvd region|region 1]] DVDs for "[[Hostel (film)|Hostel]]" (2006), "[[Underworld: Evolution]]" (2006), "[[Running With Scissors]]" (2006), and "[[Casino Royale (2006 film)|Casino Royale]]" (2006). Many DVDs by [[Disney]], [[Touchstone Pictures]], and [[The Weinstein Company]] also use ARccOS - including "[[Pirates of the Caribbean: Dead Man's Chest]]", "[[Flightplan]]",[[The U.S. vs. John Lennon|"The U.S. vs. John Lennon"]] and "[[Lucky Number Slevin]]".
ARccOS had reportedly been discontinued by Sony in February of 2006.<ref>{{cite web | title = Macrovision's RipGuard Shows Consistent Use By Disney | author=Kate DuBose Tomassi | work=Forbes Magazine | date=2006-03-10 | url = http://www.forbes.com/markets/2006/03/10/macrovision-ripguard-0310markets08.html}}</ref> However, several high-profile releases since then have used it, including the [[dvd region|region 1]] DVDs for "[[Hostel (film)|Hostel]]" (2006), "[[Underworld: Evolution]]" (2006), "[[Running With Scissors]]" (2006), and "[[Casino Royale (2006 film)|Casino Royale]]" (2006). Many DVDs by [[Disney]], [[Touchstone Pictures]], and [[The Weinstein Company]] also use ARccOS - including "[[Pirates of the Caribbean: Dead Man's Chest]]", "[[Flightplan]]",[[The U.S. vs. John Lennon|"The U.S. vs. John Lennon"]] and "[[Lucky Number Slevin]]". "[[Hairspray]]" appears to also be encumbered with ARccOS.


Despite being promoted as 'Fully compatible with available DVD players and drives'<ref>{{cite web | title = ARccOS™ | url = http://www.sonydadc.com/americas/prod.newtech.arccos1.go | accessdate = 2007-04-18 }}</ref>, some DVD players can not play movies with ARccOS: Sony DVPCX995, Toshiba SD4700, Harman Kardon DVD101, Microsoft XBOX and others. <ref>{{cite web | title = Sony copy protection taking heat again: now DVDs won't play | author = Erik Hanson | work = engadget | date = 2007-04-16 | url = http://www.engadget.com/2007/04/16/sony-copy-protection-taking-heat-again-now-dvds-wont-play/ | accessdate = 2007-04-17 }}</ref> Sony has announced a future firmware update for their players to fix this incompatibility issue.<ref>{{cite web | title = Sony Pictures DVDs have a new a copy protection that makes the movies unplayable on some Sony (& other makes) DVD players! | date = 2007-04-19 | url = http://sonystrikesagain.wordpress.com/2007/03/19/hello-world/ | accessdate = 2007-04-21 }}</ref><ref>{{cite web | title = Sony admits, fixes problem with DVD DRM | author = Jacqui Cheng | date = 2007-04-18 | url = http://arstechnica.com/news.ars/post/20070418-sony-to-replace-incompatible-dvds.html | accessdate = 2007-04-19 }}</ref> Sony Customer Service is now offering re-issued replacements for defective discs.<ref>{{cite web | title = Sony fixes problem with ARccOS-protected DVDs | author = Adrian Kingsley-Hughes | date = 2007-04-18 | url = http://blogs.zdnet.com/hardware/?p=360 | accessdate = 2007-04-21 }}</ref><ref>{{cite web | title = Sony Replaces ARccOS-Protected DVDs | date = 2007-04-19 | url = http://www.cdrinfo.com/Sections/News/Details.aspx?NewsId=20244 | accessdate = 2007-04-21 }}</ref>
Despite being promoted as 'Fully compatible with available DVD players and drives'<ref>{{cite web | title = ARccOS™ | url = http://www.sonydadc.com/americas/prod.newtech.arccos1.go | accessdate = 2007-04-18 }}</ref>, some DVD players can not play movies with ARccOS: Sony DVPCX995, Toshiba SD4700, Harman Kardon DVD101, Microsoft XBOX and others. <ref>{{cite web | title = Sony copy protection taking heat again: now DVDs won't play | author = Erik Hanson | work = engadget | date = 2007-04-16 | url = http://www.engadget.com/2007/04/16/sony-copy-protection-taking-heat-again-now-dvds-wont-play/ | accessdate = 2007-04-17 }}</ref> Sony has announced a future firmware update for their players to fix this incompatibility issue.<ref>{{cite web | title = Sony Pictures DVDs have a new a copy protection that makes the movies unplayable on some Sony (& other makes) DVD players! | date = 2007-04-19 | url = http://sonystrikesagain.wordpress.com/2007/03/19/hello-world/ | accessdate = 2007-04-21 }}</ref><ref>{{cite web | title = Sony admits, fixes problem with DVD DRM | author = Jacqui Cheng | date = 2007-04-18 | url = http://arstechnica.com/news.ars/post/20070418-sony-to-replace-incompatible-dvds.html | accessdate = 2007-04-19 }}</ref> Sony Customer Service is now offering re-issued replacements for defective discs.<ref>{{cite web | title = Sony fixes problem with ARccOS-protected DVDs | author = Adrian Kingsley-Hughes | date = 2007-04-18 | url = http://blogs.zdnet.com/hardware/?p=360 | accessdate = 2007-04-21 }}</ref><ref>{{cite web | title = Sony Replaces ARccOS-Protected DVDs | date = 2007-04-19 | url = http://www.cdrinfo.com/Sections/News/Details.aspx?NewsId=20244 | accessdate = 2007-04-21 }}</ref>

Revision as of 15:17, 10 December 2007

ARccOS is a copy-protection system developed by Sony used on some DVDs. Designed as an additional layer to be used in conjunction with Content Scramble System (CSS), the system deliberately creates corrupted sectors on the DVD, which cause copying software to produce errors. Normal DVD players never read these sectors since they follow a set of instructions encoded on the disc telling them to skip them. Less sophisticated DVD copying programs do not follow these instructions and instead try to read every sector on the disk sequentially, including the bad ones. Slysoft's AnyDVD, Fengtao's DVDFab Decrypter, RipIt4Me + DVD Decrypter + FixVTS, MacTheRipper (freeware), along with VLC media player[1], dd_rescue and MPlayer/MEncoder (for Linux) are usually able to overcome ARccOS.

ARccOS had reportedly been discontinued by Sony in February of 2006.[2] However, several high-profile releases since then have used it, including the region 1 DVDs for "Hostel" (2006), "Underworld: Evolution" (2006), "Running With Scissors" (2006), and "Casino Royale" (2006). Many DVDs by Disney, Touchstone Pictures, and The Weinstein Company also use ARccOS - including "Pirates of the Caribbean: Dead Man's Chest", "Flightplan","The U.S. vs. John Lennon" and "Lucky Number Slevin". "Hairspray" appears to also be encumbered with ARccOS.

Despite being promoted as 'Fully compatible with available DVD players and drives'[3], some DVD players can not play movies with ARccOS: Sony DVPCX995, Toshiba SD4700, Harman Kardon DVD101, Microsoft XBOX and others. [4] Sony has announced a future firmware update for their players to fix this incompatibility issue.[5][6] Sony Customer Service is now offering re-issued replacements for defective discs.[7][8]

See also

References

  1. ^ "HOWTO Backup a DVD". Gentoo Linux Wiki. Retrieved 2007-04-16.
  2. ^ Kate DuBose Tomassi (2006-03-10). "Macrovision's RipGuard Shows Consistent Use By Disney". Forbes Magazine.
  3. ^ "ARccOS™". Retrieved 2007-04-18.
  4. ^ Erik Hanson (2007-04-16). "Sony copy protection taking heat again: now DVDs won't play". engadget. Retrieved 2007-04-17.
  5. ^ "Sony Pictures DVDs have a new a copy protection that makes the movies unplayable on some Sony (& other makes) DVD players!". 2007-04-19. Retrieved 2007-04-21.
  6. ^ Jacqui Cheng (2007-04-18). "Sony admits, fixes problem with DVD DRM". Retrieved 2007-04-19.
  7. ^ Adrian Kingsley-Hughes (2007-04-18). "Sony fixes problem with ARccOS-protected DVDs". Retrieved 2007-04-21.
  8. ^ "Sony Replaces ARccOS-Protected DVDs". 2007-04-19. Retrieved 2007-04-21.
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