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menu An element in a project that provides buttons for the purpose of connecting to
other elements in your project, such as tracks and slideshows. A menu can have a still or
full motion background, and can include audio. See also background image, drop zone,
motion button, motion menu.
motion button Button shapes that can display a thumbnail image of an assigned asset.
The asset can be a still image or a video clip.
motion menu A menu that contains moving video content, either as the background, a
motion button, or a drop zone. See also background image, drop zone, motion button.
MPEG Acronym for Moving Picture Encoding Group. A group of encoding standards that
define the MPEG-1 and MPEG-2 encoding standards used by DVDs.
multiplexing The process of combining multiple streams, such as video streams, audio
streams, and subtitle streams, into a single stream. This occurs when you build your title
and create DVD-compatible streams. See also build.
muxing See multiplexing.
non-drop frame timecode Normal NTSC timecode, where frames are numbered
sequentially and there are 30 frames per second, 60 seconds per minute, and 60 minutes
per hour. Because NTSC’s frame rate is actually 29.97 fps, non-drop frame timecode is off
by 3 seconds and 18 frames per hour in comparison to actual elapsed time. See also drop
frame timecode, timecode.
NTSC Abbreviation for National Television Standards Committee. The organization that
defines North American broadcast standards. The term NTSC video refers to the video
standard defined by the committee, which has a specifically limited color gamut, is
interlaced, and is approximately 720 x 480 pixels, 29.97 fps. See also PAL.
one-pass and two-pass VBR (variable bit rate) encoding See variable bit rate (VBR)
encoding.
opposite track path (OTP) Used when creating dual-layer discs to control where the
second layer starts. With OTP, the second layer starts at the outside edge of the disc,
which is the opposite of the first layer, which starts at the disc’s inside edge. See also
dual-layer disc, parallel track path (PTP).
overlay A still graphic that provides the highlight information for buttons when creating
menus or buttons over video. Overlays can be simple, using a single color on a white
background, or advanced, using up to four predefined colors. You use color mapping to
assign highlight colors to those used in the overlay, setting different colors for each button
state (normal, selected, and activated). See also color mapping.
PAL Acronym for Phase Alternating Line. A 25 fps (720 x 576 pixels) interlaced video format
used by many European countries. See also NTSC.
653Glossary