What is an Image Constraint Token?
The Image Constraint Token (ICT) is a digital flag within the AACS (Advanced Access Content System) that determines how Blu-ray and HD DVD players output high defintion video signals through the player’s component outputs. The Advanced Access Content System (AACS) is the digital rights management (DRM) standard which will be used by Blu-ray and HD DVD to protect movies from unauthorized duplication. If the ICT token is set on a Blu-ray or HD DVD disc, then the player will down-convert the video resolution through analog outputs from 1920 by 1080 pixels to 960 by 540. The purpose of ICT is to prevent pirates from creating high resolution copies of HD DVD and Blu-ray discs via the unsecured analog outputs. The video output through HDMI is unaffected by ICT since the HDMI output is copy protected by High-Bandwidth Digital Content Protection (HDCP). The Image Constraint Token is set by the movie studio when a disc is mastered therefore whether the player down converts the video signal will
The image constraint token is a digital flag built into Blu-ray and HD-DVD discs that determines how those discs output video signals through the player’s output connectors. The goal of the image constraint token is to prevent unauthorized copies, or piracy, in high definition. An image constraint token works by instructing the player to downgrade Blu-ray and HD-DVD discs’ native high-resolution 1080p video to a standard-resolution 540p for output through its analog video connectors. The video signal from the player’s digital high-definition multimedia interface (HDMI) remains in full definition because HDMI output is copy-protected. The image constraint token is activated by the movie studio during the mastering process. The image constraint token is a part of the Advanced Access Content System (AACS), an encryption scheme built into Blu-ray and HD-DVD discs with the goal of preventing piracy. The HDMI cables used on Blu-ray and HD-DVD players use High-Bandwidth Digital Content Protec
The image constraint token is a digital flag built into Blu-ray and HD-DVD discs that determines how those discs output video signals through the player’s output connectors. The goal of the image constraint token is to prevent unauthorized copies, or piracy, in high definition. An image constraint token works by instructing the player to downgrade Blu-ray and HD-DVD discs?native high-resolution 1080p video to a standard-resolution 540p for output through its analog video connectors. The video signal from the player’s digital high-definition multimedia interface (HDMI) remains in full definition because HDMI output is copy-protected. The image constraint token is activated by the movie studio during the mastering process. The image constraint token is a part of the Advanced Access Content System (AACS), an encryption scheme built into Blu-ray and HD-DVD discs with the goal of preventing piracy. The HDMI cables used on Blu-ray and HD-DVD players use High-Bandwidth Digital Content Protect
The image constraint token is a digital flag built into Blu-ray and HD-DVD discs that determines how those discs output video signals through the player’s output connectors. The goal of the image constraint token is to prevent unauthorized copies, or piracy, in high definition. An image constraint token works by instructing the player to downgrade Blu-ray and HD-DVD discs’ native high-resolution 1080p video to a standard-resolution 540p for output through its analog video connectors. The video signal from the player’s digital high-definition multimedia interface (HDMI) remains in full definition because HDMI output is copy-protected. The image constraint token is activated by the movie studio during the mastering process. The image constraint token is a part of the Advanced Access Content System (AACS), an encryption scheme built into Blu-ray and HD-DVD discs with the goal of preventing piracy. The HDMI cables used on Blu-ray and HD-DVD players use High-Bandwidth Digital Content
