Button – Apple DVD Studio Pro 4 User Manual
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authoring media The DVD-R format that supports the Cutting Master Format (CMF) for
adding advanced features to master discs supplied to a replication facility. Requires using
a special authoring DVD-R drive. See also
AVC (Advanced Video Codec) See
.
background image All menus have a background image, over which the menu’s buttons
are placed. The background can be a still image or a motion video (creating a motion
menu). See also
B-frame Bi-directional frame. In an MPEG video stream, a B-frame contains the motion
differences between I-frames and P-frames occurring before and after it. With respect to
file sizes, these are the most efficient frame types, although they have the greatest difficulty
in handling abrupt scene changes. See also
bit rate The number of bits per second that makes up a digital video or audio asset. The
higher the bit rate, the better the quality. However, higher bit rates require larger file
sizes and can cause playback problems if the DVD player is unable to keep up. The DVD
specification places bit rate limits on assets used in DVD titles.
blue laser The name for the new disc format supported by HD-based DVDs. The name
refers to the color of the laser that plays the discs. Because a blue laser has a shorter
wavelength than the red laser used with traditional SD-based DVDs, it is able to handle
data that is more tightly packed than on red laser discs. This results in a little more than
three times higher disc capacity. See also
.
build To compile the project into its DVD-compliant format, creating the AUDIO_TS and
VIDEO_TS folders for SD projects, and the HVDVD_TS folder for HD projects. The streams
that make up a track are multiplexed into a single video object file. See also
burn To write data to a disc. Within DVD Studio Pro, burn refers to a process that builds
the project and then formats and writes it to a DVD-R, simplifying the process. See also
.
button Each DVD menu has at least one button that the viewer can activate to access
areas within the DVD. You can also place buttons over a video track. DVD Studio Pro
supports three button types: overlay-based using an overlay graphic, shape-based using
supplied or custom shape graphics, and layer-based using layers in an Adobe Photoshop
(PSD) format file. You can connect buttons to a wide variety of project elements, including
buttons on other menus, tracks, stories, slideshows, and scripts. See also
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Glossary