Pentax Optio I-10 Operating Manual page 191

Available operations during playback
Zoom lever to the right
(*)
Zoom lever to the left (/) Reduces the volume.
Four-way controller (2)
Four-way controller (4)
Four-way controller (5)
Available operations while playback is paused
Four-way controller (2) Resumes playback.
Four-way controller (4) Rewinds approx. 5 seconds.
Four-way controller (5) Advances approx. 5 seconds.
4
Press the four-way controller (3).
Playback stops.
Increases the volume.
Pauses playback.
(If there are no recorded indexes) Fast-reverses
playback.
(If there are recorded indexes) Plays back starting
from the previous index.
(If there are no recorded indexes) Fast-forwards
playback.
(If there are recorded indexes) Plays back starting
from the next index.
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