This property is important for the content that is updated per time. For example, for image sequences this property indicates how fast images will be switched.
Rate is nested in separated XML node <rate>:
XML
<cg-item id='image-000'>
<img path=c:\folderWithImages\*.*'/>
<cg-props pos-x='36' pos-y='24' show='yes' move-type='accel-both' alpha='255' bg-color='Black(0)' pixel-ar='0.' play-mode='loop' interlace='auto' scale='fit-ar' align='top-left' width='300' height='200' pause='no' edges-smooth='0'>
<indent left='0' right='0' top='0' bottom='0' use-for-bg='no'/>
<group-indent left='0' right='0' top='0' bottom='0'/>
</cg-props>
<rate original='yes' speed='1.'/>
</cg-item>
Rate node contains 2 attributes: original and speed.
To keep original playback rate (for example for flash movie) you should set original attribute to 'yes'. If it is 'no' - the item is updated according to source object playback rate.
To modify speed of item refreshing you should set speed attribute. For example, to decrease frequency for image sequence you can set speed='0.1' - in this case image is updated on each 10 frame of source object. By default playback rate is 1. It means that new frame from ETX-G item should be received on each frame from source object.