Adobe Encore CS3 allows you to /burn projects to Blu-ray media, a new format designed specifically for high-definition video. This document provides information about Blu-ray specifications and how to work with content intended for delivery on Blu-ray media.
Blu-ray discs are available in single-layer, 25 GB format and in dual-layer, 50 GB format. Encore CS3 only supports single-layer format, which can store the following approximate amounts of video.
- 4.5 hours of high-definition (HD) video.
- 11 hours of standard-definition (SD) video.
- A high-definition feature of 135 minutes using MPEG-2 encoding, with additional room for 2 hours of bonus material in standard definition quality.
The physical size of a Blu-ray disc is the same as a DVD or CD, measuring 12 cm in diameter. Mini-Blu-ray discs are also available. Mini-Blu-ray discs are 8 cm in diameter and hold 7.8 GB of data.
Note: Mini-Blu-ray discs have not been tested with Encore CS3 and are not supported officially. Encore does not allow you to specify that you are using a mini-Blu-ray disc. (You can still specify that you are using mini-DVDs).
Blu-ray uses a blue-violet laser operating at a wavelength of 405 nm to read and write data. In comparison, DVDs and CDs use red and infrared lasers at 650 nm and 780 nm respectively.
The following table shows the supported frame rate, frame size, and aspect ratio for NTSC and PAL Blu-ray discs.
|TV standard||Frame rate||Frame size||Aspect ratio||Region|
|720 x 480
1280 x 720
1440 x 1080
1920 x 1080
|720 x 576
1280 x 720
1440 x 1080
1920 x 1080
Encore can encode video using either the H.264 codec or MPEG-2 codec. The MPEG-2 codec is the same as that used on DVD; H.264 (or MPEG-4, part 10) is a newer codec that provides greater compression without sacrificing quality. You can change the type of codec used for your project in the Project Settings. Although the Blu-ray specification allows you to use both codecs on a single disc, Encore requires that you specify only one codec for the entire project.
The Blu-ray specification also allows for a third codec called VC-1, an MPEG-4 derivative developed by Microsoft based on Window Media 9. Encore CS3 does not support encoding with this codec.
Encore can encode audio using either the Dolby Digital (AC3), or PCM codec. You can encode Dolby Digital audio as mono, stereo, or up to six channels (5.1) if the imported audio files are also in these formats. All other files, including PCM, will be encoded as stereo.
Note: You can import DTS files (mono, stereo, or up to six channels (5.1)) into Encore, and they will be written to disc without being transcoded.
You can change the type of codec used for your project in the Project Settings. Although the Blu-ray specification allows you to mix codecs on a single disc, Encore requires that you specify only one codec for the entire project.
For more information about supported file formats and transcoding, see "File formats supported by Encore CS3" (TechNote kb401286).
The support that Encore provides for interactivity using menus is similar to the support for DVD menus. The Blu-ray specification also allows for more advanced interactivity options using the Java programming language. This extended interactivity, called BD-J, is not supported by Encore.
Note: Blu-ray players have slightly different menu controls than DVD players. Blu-ray players include a Popup/Title Menu button that is displayed on-screen while the movie continues playing. Thus, any action that is set for the Menu Remote will be ignored when the project is burned to Blu-ray.
Encore does not support region codes for Blu-ray discs.
To learn more about region codes allowed by the Blu-ray specification, visit the Wikipedia website at en.wikipedia.org/wiki/Blu-ray.
Encore does not support copy protection for Blu-ray discs.
To learn more about copy protection for Blu-ray, visit the Wikipedia website at en.wikipedia.org/wiki/Blu-ray.
Blu-ray discs are available in two formats:
- BD-R discs can be written to only once.
- BD-RE discs can be erased and re-recorded multiple times.
Encore offers three formats for outputting Blu-ray projects, available from the Build panel:
- Blu-ray Disc: Burns a Blu-ray disc to play on a Blu-ray player, computer, or Sony PlayStation 3
- Blu-ray Folder: Builds a Blu-ray directory structure on your hard drive for playback on a computer equipped with Blu-ray software
- Blu-ray Image: Builds a Blu-ray image on your hard drive. The image is typically used by a third-party mastering application
Note: When you create a Blu-ray image, you must also make a selection from the Image Type drop-down. The following Image Type options are available:
- BD-R: Write once, recordable format for high-definition TV recording and computer data storage
- BD-RE: Re-writable format for high-definition TV recording and computer data storage
- BD-ROM: Read-only format for computer software, games, and movie distribution
- On the Samsung BD-P1000 Blu-ray player, the video is always shortened by two frames.
- The Philips BDP9000 player cannot play Blu-ray discs authored by Encore.
- When your project settings are set to Blu-ray, and you create a new After Effects composition using File > Dynamic Link > New After Effects composition, the resulting composition is in in standard definition.
- When you preview a Blu-ray motion menu, the preview shows a static menu. However, the menu includes motion elements when burned to disc.
- On Mac OS, when you insert a blank Blu-ray disc in the drive, a message is displayed stating "The disk you inserted was not readable by this computer." You must click Ignore on the message dialog to use the media in Encore.
- Blu-ray projects display DVD Transcode Settings/Status columns in the Project panel. These settings can be ignored since they are irrelevant when transcoding for Blu-ray.
- The default destination folder in the Build panel for a Blu-ray project displays the last project opened. You can change this by clicking Browse and then navigating to the desired location.
- Imported H.264 files exhibit stuttered playback during preview. This is a limitation of the playback engine only; the files will play back normally when burned to disc.
- When previewing a Blu-ray project, the zoom percentage in the Preview panel is relative to standard definition footage. For example, for an NTSC Blu-ray project, a Preview panel set at 100% will display 720 x 480 pixels, instead of the Blu-ray frame size (see TV standards for supported frame sizes).
- On Mac OS, the Transcode status indicator in the Preview window displays incorrect information. The information displayed reflects the asset as if it was used in DVD authoring mode.
- When you select an asset in the Project panel and choose File > Transcode Now, the bitrate limit specified in the Project Settings in not used.
- When you build a Blu-ray project that contains a menu with a button that is partially offscreen, you will receive an "Invalid Format Error Code 14" message.
- If you have a menu button set to auto-activate, then the button will activate when the menu is displayed, regardless of whether the button is the default button or not.
- Encore sets AIFF files to "Don't Transcode," which results in an"Invalid Format Error Code 14" message when you build the project. To avoid this, set your AIFF files to any other transcode setting before building the disc.