Can one author a DVD with CSS included?
I know DVD recorders & media exist. I'll assume they let you burn movies in a not-CSS encoded format that ordinary DVD players can play. Are there no utilities that let Joe Sixpack record his own CSS-"protected" movies? One would have to choose a CSS key, but these are known, as is the CSS algorithm. If such utilities exist, why isn't duping one's self-authored CSS protected DVDs used as a defense in ongoing DVD copy-utility trials? If DVD-CSS-burning utilities don't exist, are there any tech obstacles to creating them? Any legal obstacles? (The "interop" defense is still legit, and you're not *circumventing* squat in this case.) Couldn't you use CSS+DVD players to enforce policies like "must watch this segment" which commercial disks reportedly do?
From: "Major Variola (ret)" <mv@cdc.gov>
Are there no utilities that let Joe Sixpack record his own CSS-"protected" movies? One would have to choose a CSS key, but these are known, as is the CSS algorithm.
The CSS keys are in an area of the disc that cannot be written to by any DVD recorder. Only the DVD-pressing machines can create CSS-protected discs.
At 19:02 2003-05-16 -0400, you wrote:
From: "Major Variola (ret)" <mv@cdc.gov>
Are there no utilities that let Joe Sixpack record his own CSS-"protected" movies? One would have to choose a CSS key, but these are known, as is the CSS algorithm.
The CSS keys are in an area of the disc that cannot be written to by any DVD recorder. Only the DVD-pressing machines can create CSS-protected discs.
I think not. Anyone can buy Authoring disks and PC-DVD recorders are openly available to record such disks. Both cost more than General Purpose disks. steve
At 16:18 2003-05-16 -0700, Steve Schear wrote:
At 19:02 2003-05-16 -0400, you wrote:
From: "Major Variola (ret)" <mv@cdc.gov>
Are there no utilities that let Joe Sixpack record his own CSS-"protected" movies? One would have to choose a CSS key, but these are known, as is the CSS algorithm.
The CSS keys are in an area of the disc that cannot be written to by any DVD recorder. Only the DVD-pressing machines can create CSS-protected discs.
I think not. Anyone can buy Authoring disks and PC-DVD recorders are openly available to record such disks. Both cost more than General Purpose disks.
Pioneer DVR-S201 The DVR-S201 is the world's first DVD-R drive to support the recently released 4.7GB media of DVD-R Book Ver 2.0 for Authoring. The DVR-S201 drive is designed for authoring DVD titles that utilize the full capacity of mass-produced DVD-ROM or DVD-Video media. A completed DVD-R disc is ideal to use a Press Cutting Master Disc. The DVR-S201 drive is also specially designed for authoring applications offering added convenience for creating DVD titles and content with increased efficiency. The DVR-S201 drive is backward compatible, allowing continued use of conventional 3.95GB / Book Ver 1.0 DVD-R discs. This allows for maximum compatibility with existing players and drives. Discs recorded using the DVR-S201 can be played on most DVD-ROM drives and DVD-Video players. The drive's ability to handle a 4.7GB DVD-R disc, which is equal in capacity to replicated DVD-ROM or DVD-Video discs, allows the entire content to be test prior to mass production. The drive is also useful for small-scale distribution of DVD content. steve
At 16:44 2003-05-16 -0700, Steve Schear wrote:
At 16:18 2003-05-16 -0700, Steve Schear wrote:
At 19:02 2003-05-16 -0400, you wrote:
From: "Major Variola (ret)" <mv@cdc.gov>
Are there no utilities that let Joe Sixpack record his own CSS-"protected" movies? One would have to choose a CSS key, but these are known, as is the CSS algorithm.
The CSS keys are in an area of the disc that cannot be written to by any DVD recorder. Only the DVD-pressing machines can create CSS-protected discs.
I think not. Anyone can buy Authoring disks and PC-DVD recorders are openly available to record such disks. Both cost more than General Purpose disks.
I stand corrected. Further research indeed indicates that neither the General Purpose or Authoring disks can be used to store CSS data. steve
From: Steve Schear
The CSS keys are in an area of the disc that cannot be written to by any DVD recorder. Only the DVD-pressing machines can create CSS-protected discs. I think not. Anyone can buy Authoring disks and PC-DVD recorders are openly available to record such disks. Both cost more than General Purpose disks.
Pioneer DVR-S201
The DVR-S201 is the world's first DVD-R drive to support the recently released 4.7GB media of DVD-R Book Ver 2.0 for Authoring. The DVR-S201 drive is designed for authoring DVD titles that utilize the full capacity of mass-produced DVD-ROM or DVD-Video media. A completed DVD-R disc is ideal to use a Press Cutting Master Disc. The DVR-S201 drive is also specially designed for authoring applications offering added convenience for creating DVD titles and content with increased efficiency.
An authoring disc can be played like a regular disc and it has the extra information that is needed to create a CSS disc, but it does not actually have the CSS information in the place where standard DVD players will read it. To create an actual CSS-encrypted disc you need to have a glass master created and DVDs pressed. See: http://www.pioneerelectronics.com/Pioneer/Files/DVDR_whitepaper.pdf "It should be noted, however, that CSS encryption cannot be used with either type of DVD-R media."
participants (3)
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Ken Hirsch -
Major Variola (ret) -
Steve Schear