Important Notice to the subscribers of the HD DVD-ROM Format Specifications Book Ver.1.2

Book Subscribers > Important Notice to the subscribers of the HD DVD-ROM Format Specifications Book Ver.1.2

Updated July 20, 2005

July 20th 2005

Important Notice to the subscribers of the HD DVD-ROM Format Specifications Book Ver.1.2

1. Scope.

This important notice is provided for the HD DVD-ROM Specifications Book Ver.1.2 Subscribers engaged in manufacturing HD DVD-ROM/DVD-ROM Twin format discs (hereinafter "Subscribers").

2. Background.

DVD Specifications for High Density Read-Only Disc (HD DVD-ROM) Part 1 PHYSICAL SPECIFICATIONS Version 1.1 were upgraded to Ver.1.2 in May 2005. Ver.1.2 specifications provide "HD DVD-ROM/DVD-ROM Twin format disc" (hereinafter "Twin format disc") as a normative annex.

Twin format disc is a newly introduced type of disc in the HD DVD-ROM family. Its dual layer structure is composed of the combination of HD DVD-ROM single layer and DVD-ROM single layer.
This physical integration of a DVD-ROM layer with an HD DVD-ROM layer is intended to provide playback functionality of the Twin format disc not only by HD DVD-ROM players but also by DVD-ROM players.
The Twin format disc is also intended to be recognized as a Single-Layer DVD-ROM disc by legacy players that have already been introduced into the market; therefore, this disc can be played back by many existing players.
However, at the same time, due to the new combination of two different formats for legacy players, there is also possibility that a Twin format disc may not be correctly identified or played back by a legacy player.

Therefore, Subscribers may wish to provide an appropriate notice to end-users regarding this potential issue. For this purpose, Subscribers may wish to consider the following example of a caution notice to end-users.

3. Example of caution language.

As an example, the DVD Forum provides the following sample caution notice to be used for Twin format disc products for the above-specified purpose (hereinafter "the Sample Notice").

"Caution:
This disc is a dual layer disc composed of a combination of HD DVD-Video & DVD-Video single-layers to provide playback functionality for both HD DVD-Video players and DVD-Video players. However, some DVD-Video players might not play back this Twin format disc, due to its physical integration."

4. The DVD Forum offers the Sample Notice only by way of example for Subscribers’ consideration and individual judgment. The DVD Forum does not require Subscribers to adopt the above Sample Notice for any Subscribers’ DVD products. It is Subscribers’ sole discretion whether to use, modify or elect not to use the Sample Notice.

5. Subscribers are further advised that the physical characteristics of any such notice with respect to DVD Products, such as placement, type size and style, color, etc, shall be determined at the sole discretion of Subscribers.

6. Subscribers may wish to consult their own legal counsel regarding the use or non-use of any such notice with respect to their products.

7. Disclaimer.

THE SAMPLE NOTICE IS PROVIDED ONLY AS AN EXAMPLE. THE DVD FORUM MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE, AND EXPRESSLY DISCLAIMS IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND ANY EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION, WITH RESPECT TO THE USE OR NON-USE OF THE SAMPLE NOTICE OR OTHER NOTIFICATION, INCLUDING WITOUT LIMITATION THE LEGAL EFFECT OF THE USE OR NON-USE OF SUCH NOTICE.

FURTHER, NEITHER THE DVD FORUM NOR ITS MEMBERS SHALL BE LIABLE TO SUBSCRIBERS FOR ANY DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL OR PUNITIVE DAMAGES ARISING OUT OF ANY CAUSE OF ACTION RELATING TO USE OR NON-USE OF THE SAMPLE NOTICE, OR BASED ON MAKING, USING, SELLING OR DISTRIBUTING ANY DVD PRODUCTS WITH OR WITHOUT THE SAMPLE NOTICE OR OTHER NOTIFICATION.
[End]