AACS copy protection for Blu-ray disc and HD DVD delayed again? - Not Any more!
According to the article by heise online posted today, the launch of HD DVD and Blu-ray Disc formats may be postponed once again due to delays with the AACS copy protection specifications!
Last Friday, the meeting of the AACS LA was to resolve the final specifications of the new Advanced Access Content System (AACS). But insiders are reporting that no such agreement was reached. Instead, it is said that an important member of the Blu-ray Disc Association is still voicing concerns about the interaction of AACS and the additional BD+ protection for Blu-ray movies. The next meeting is scheduled for February 23rd and 24th.
Without the AACS specification, the copy protection keys that manufacturers of drives and media need cannot be produced. For instance, manufacturers such as NEC, Pioneer, Samsung, and Toshiba are eagerly awaiting the specifications so they can implement AACS in their equipment.
Hollywood movie studios are insisting that such protection be included in all drives. Without AACS, high-resolution movies can't be played back. A Mandatory Managed Copy (MMC) can, however, be made. Only if the holder of the copyright gives explicit consent may a limited number of copies of the original disc be created; the movie may also not be streamed via a Media Center or to mobile devices without express consent. An online connection is required to check for rights to make a permitted copy. The holder of the copyright may, however, completely rule out copies or demand a fee.
AACS can renew device keys, thereby blocking manipulated drives. BD+ provides additional protection for Blu-ray discs: here, a program in a Java Virtual Machine constantly monitors the movie's data stream and stops playback if there is any manipulation. To prevent the data stream from being grabbed on its path from the player software to the graphics card, Microsoft's Certified Output Protection Protocol (COPP) will monitor the connection. Among other things, COPP is designed to prevent movies from being output to a virtual graphics card that redirects the data into a file. Graphics cards can be upgraded to COPP by means of a driver update; Windows XP supports COPP upwards of Service Pack 2, as will the upcoming Windows Vista.
In turn, HD output is only possible if the graphics card encrypts the digital monitor signal at the DVI output via HDCP or if it has an HDMI output. Likewise, the monitor must support HDCP / HDMI. Without this encryption, the movie will only be played in standard resolutions. The first graphics cards that support HDCP are to hit stores in the 2nd quarter; current models cannot be upgraded because they lack the special BIOS chip required.
Now that the AACS specification has been postponed once again, the sales releases announced for the first Blu-ray burners, HD DVD drives, and stand-alone players at the beginning of March will probably not be possible; we can expect the delay to move the schedule back at least one month. As one Blu-ray manufacturer told heise online, "We need at least two or three weeks to apply for the keys and implement the system." (Craig Morris) / (jk/c't)
Read the article here.
UPDATE (7/17/06): The AACS agreement has been reached! No delays expected!
According to the article by heise online posted today, the launch of HD DVD and Blu-ray Disc formats may be postponed once again due to delays with the AACS copy protection specifications!
Last Friday, the meeting of the AACS LA was to resolve the final specifications of the new Advanced Access Content System (AACS). But insiders are reporting that no such agreement was reached. Instead, it is said that an important member of the Blu-ray Disc Association is still voicing concerns about the interaction of AACS and the additional BD+ protection for Blu-ray movies. The next meeting is scheduled for February 23rd and 24th.
Without the AACS specification, the copy protection keys that manufacturers of drives and media need cannot be produced. For instance, manufacturers such as NEC, Pioneer, Samsung, and Toshiba are eagerly awaiting the specifications so they can implement AACS in their equipment.
Hollywood movie studios are insisting that such protection be included in all drives. Without AACS, high-resolution movies can't be played back. A Mandatory Managed Copy (MMC) can, however, be made. Only if the holder of the copyright gives explicit consent may a limited number of copies of the original disc be created; the movie may also not be streamed via a Media Center or to mobile devices without express consent. An online connection is required to check for rights to make a permitted copy. The holder of the copyright may, however, completely rule out copies or demand a fee.
AACS can renew device keys, thereby blocking manipulated drives. BD+ provides additional protection for Blu-ray discs: here, a program in a Java Virtual Machine constantly monitors the movie's data stream and stops playback if there is any manipulation. To prevent the data stream from being grabbed on its path from the player software to the graphics card, Microsoft's Certified Output Protection Protocol (COPP) will monitor the connection. Among other things, COPP is designed to prevent movies from being output to a virtual graphics card that redirects the data into a file. Graphics cards can be upgraded to COPP by means of a driver update; Windows XP supports COPP upwards of Service Pack 2, as will the upcoming Windows Vista.
In turn, HD output is only possible if the graphics card encrypts the digital monitor signal at the DVI output via HDCP or if it has an HDMI output. Likewise, the monitor must support HDCP / HDMI. Without this encryption, the movie will only be played in standard resolutions. The first graphics cards that support HDCP are to hit stores in the 2nd quarter; current models cannot be upgraded because they lack the special BIOS chip required.
Now that the AACS specification has been postponed once again, the sales releases announced for the first Blu-ray burners, HD DVD drives, and stand-alone players at the beginning of March will probably not be possible; we can expect the delay to move the schedule back at least one month. As one Blu-ray manufacturer told heise online, "We need at least two or three weeks to apply for the keys and implement the system." (Craig Morris) / (jk/c't)
Read the article here.
UPDATE (7/17/06): The AACS agreement has been reached! No delays expected!
