A recording andor reproducing apparatus for an optical disc having a pit area where data has been recorded and also having a grooved area where data is to be recorded includes an optical pickup, an error signal generating unit, a shift signal generating unit and a servo controller. The air filter unit includes an air filter housing that contains an air filter and includes openings for the ingress of air from the refrigerator which, after passing through the air filter, is discharged to the refrigerator interior through discharge openings in the air filter housing. The system includes at least one fan for directing the mechanically cooled fluid to a designated area. The upper zones have sidewalls and downwardly extending dam walls that cooperate to create the low flow zones beneath the heated surface. Expansion of the bellows member in the first direction reduces the chamber volume for generating positive pressure in the housing and forcing fluid through a valve to the applicator assembly. The receiver records the upcoming broadcast to an internal memory of the receiver in response to either the broadcast being automatically selected based on the user’s preferences or the user manually selecting the upcoming broadcast.