Extras tab – Apple Compressor 2 User Manual
Page 143
Chapter 10
Creating MPEG-2 Output Files
143
Extras Tab
You use the Extras tab to control the inclusion or exclusion of specific MPEG-2
authoring information. The Extras tab contains the following controls:
 Add DVD Studio Pro meta-data: Selecting this checkbox allows Compressor to parse
specific MPEG-2 authoring information during the transcoding process to accelerate
the import process into DVD Studio Pro. However, these MPEG-2 files will be
incompatible with versions of DVD Studio Pro 1.5 or earlier. Leaving the checkbox
unselected means the information will be parsed later in DVD Studio Pro.
Note: MPEG-2 streams with additional DVD Studio Pro metadata are only compatible
with DVD Studio Pro 2 (or later) versions. MPEG-2 streams with this checkbox
selected will not be compatible with versions prior to DVD Studio Pro 2, or with other
DVD authoring tools. All Apple settings have this box checked by default. To make
your MPEG-2 files compatible with other DVD authoring tools, uncheck this box, and
then save the setting.
 Include chapter markers only: Selecting this checkbox excludes unnamed
compression markers from the stream but still retains the chapter markers. Leaving
the checkbox unselected allows all markers to be recognized in the output media
file. See “
Adding DVD Studio Pro Chapter Markers to a Clip
” on page 222 for more
information about chapter markers.
 Multiplexed MPEG-1/Layer 2 Audio: Selecting this checkbox makes the output file a
transport stream rather than an elementary stream. A transport stream combines
multiple elementary streams, in this case, video and audio, into a single file for real-
time distribution such as television. The audio in this stream will be MPEG-1 Layer 2,
with a sample rate of 44.1 kHz or 48 kHz (depending on the source) and a bit rate of
384 kbps. To create an audio-only (MPEG-1/Layer 2 Audio) elementary stream, see
“