Pentax Optio M20 Operating Manual page 88

• Quality level is set at D when shooting mode is set to Y.
• When shooting mode is set to d, the number of recorded pixels
set in [Movie] on the recording mode menu is set. (p.102)
• If you use the [Quality Level] function frequently, you can save
time by assigning it to the Green button. (p.56)
Recorded Pixels and Quality Level of Still Pictures 1p.29
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86