McHENRY – Corporate Disk Co. makes 100,000 CDs and DVDs each day that are shipped around the world from its headquarters in McHenry.

It makes CDs, DVDs, books, training manuals and other products for a variety of clients. The company produces employee-orientation manuals and training videos for large corporations and sets of DVDs for self-help gurus. In addition to producing various media packages, Corporate Disk Co. also stores and distributes materials for its clients.

Corporate Disk started in 1984 selling bulk, blank 5-1/4-inch floppy disks with custom-printed sleeves and labels. As technology advanced, the company began duplicating information onto 3-1/2-inch floppy disks, then audio cassettes and VHS cassettes.