Pioneer DVR-65H-S Training Manual page 9

Signal flow Record Preview Mode
In the normal viewing mode (non record) or recording modes the video signal passes
through the AV-codec IC on the main board with very little processing visible at the
monitor output.
If the user selects Preview Mode the video output at the monitor will show the
effects of all encoding, 3D Y/C separation, decoding and record mode settings.
This preview mode was designed to provide the user a way of viewing the record
quality prior to making a disc.
All models have the capability to select different recording quality based on time
from one to six hours.
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