Cook Laboratories

Emory Cook's production plant in Connecticut offering a range of services including a recording studio, vinyl mastering and pressing, cassette and record duplication and stamping.

Vinyl format releases that were mastered and/or pressed here can sometimes be identified by a 'CX-', "CO-", or "COOK-" matrix number etched in the runout grooves.
CX-#####, CO-####, or COOK-### is a unique Cook number that can be entered in the catalog number field adjacent to the Pressed By example).