Maximum Bit Rates for Multi- and Mixed-Angle Tracks
The maximum bit rate for a multi- or mixed-angle track is different from other tracks. Due
to the way the DVD specification requires video streams to be multiplexed together, the
number of video streams determines the maximum video bit rate you can use. Following
is a list of maximum combined bit rates (highest bit rate video stream + all audio streams
+ all subtitle streams) you can use for each multi- and mixed-angle track.
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Chapter 4
Preparing Video Assets
Important:
When calculating the combined bit rate for a track, you only need to add in
the bit rate of one video stream, but it needs to be the stream with the highest bit rate.
SD Projects
• 5 angles or fewer: 8 Mbps maximum for the track’s combined bit rate
• 6–8 angles: 7.5 Mbps maximum for the track’s combined bit rate
• 9 angles: 7 Mbps maximum for the track’s combined bit rate
HD Projects
• 2 to 9 angles: 24 Mbps maximum for the track’s combined bit rate
Note: 1080i HDV video uses a bit rate of 25 Mbps, which is higher than the maximum
allowable multi-angle bit rate. 720p HDV video uses a bit rate of 19 Mbps, which,
depending on the number and type of audio and subtitle streams, can be used in a
multi-angle project.