Pioneer DEH-P825R Operation Manual page 76

Using Multi-CD Players
Multi-CD Player Scan Play
When one or more multi-CD players are
installed, the first 10 seconds or so of each track -
on a disc are scanned in the One-track Repeat
and Disc Repeat modes and the first tracks of
each disc in the Multi-CD player Repeat and All
Repeat modes. ,
Press button 11.
"DSC" is displayed in the One-track Repeat or
Disc Repeat modes and "MSC" in the Multi-CD
player Repeat mode and "SCN" in the All
Repeat mode.
« When you hear the track you are looking for,
push button 11 again.
Playback of the current track or disc will
continue.
Note: Scan Play is canceled automatically after
all the tracks or discs have been scanned.
~¥ b&b
Multi-CD player Scan Play options
Operation
One-track Repeat | The mode returns to the Disc Repeat mode,
and all tracks on the current disc are scanned.
Disc Repeat All tracks on the current disc are scanned.
Multi-CD player | The first tracks of all the discs in the multi-CD
Repeat player magazine are scanned.
All Repeat When two or more multi-CD players are
installed, the first tracks of all the discs in the
magazines of all the installed multi-CDs are
scanned.