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Table Of Contents
Secondary video codecs
You can combine codecs for primary and secondary video as follows:
Primary Video Streams
Secondary Video Streams
MPEG-2 MPEG-4 AVC VC-1
MPEG-2 Allowed Allowed Allowed
MPEG-4 AVC Prohibited Allowed Prohibited
VC-1 Prohibited Prohibited Allowed
Allowed combination of primary video formats and secondary video formats
The Blu-ray Disc specification allows HD or SD secondary video streams, but most Blu-ray Disc players
cannot play back a secondary video stream that contains HD content. Therefore, we recommend that you
use only SD video in your secondary video streams.
Primary video streams
Frame size (pixels) Frame rate (Hz) Progressive/Interlace Aspect ratio
1920x1080 29.97 Interlace 16:9
25 Interlace
23.976 Progressive
24 Progressive
1280x720 59.94 Progressive 16:9
50 Progressive
23.976 Progressive
24 Progressive
720x480 29.97 Interlace 4:3 or 16:9
720x576 25 Interlace 4:3 or 16:9
Secondary video streams
Frame size (pixels) Frame rate (Hz) Progressive/Interlace Aspect ratio
720x480 29.97 Interlace 4:3 or 16:9
720x576 25 Interlace 4:3 or 16:9
Adding a secondary video track
DoStudio Authoring allows you to implement picture-in-picture using a single secondary video stream
or with multiple secondary video streams.
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