Yamaha CD Recordable/Rewritable Drive CRW2200S Owner's Manual page 30

Parity Check
Parity ON (Default)
Normally leave this
setting alone.
The setting allows for the parity
checking. Normally, set PARITY
to ON to enable error correction.
Note
Termination
Hard disk drive
(unterminated)
MO drive
(terminated)
Terminator
SCSI Connection Set Up
Parity OFF
The setting does not
allow for parity
checking.
Computer
(terminated)
SCSI card