Sirius Satellite Radio SportsterIR SP-R2 User Manual page 24

A diamond-shaped Play Position indicator is
superimposed over the Progress Bar which
provides a visual indicator of the current playback
position in the Instant Replay memory.
The Play Position indicator shows your current
listening position in the stored audio. When you
press the Play/Pause button to begin playback of
the stored audio, this indicator will begin to move
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to the right showing the progression of the
playback through the Instant Replay memory,
provided that the memory is not full.
The portion of the Progress Bar behind the Play
Position indicator shows how much you can
rewind in the Instant Replay memory, while the
filled portion ahead of the Play Indicator shows
how much you can fast-forward in the memory.
While you are in the playback mode, the Receiver
continues to store the audio from the channel.
Obviously, you will be unable to "catch up" to the
live broadcast during playback, as new audio is
being stored at the same rate at which you are
playing back the stored audio. You can use the
Fast-Forward button to skip ahead or exit the
Instant Replay mode, and begin listening to the
live broadcast again.
Sportster SP-R2 User Guide