CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANT We hereby consent to the use in the Registration Statement on Form S-1 of our report dated June 30, 1997, relating to the audited financial statements of HDN, Inc. and to the reference to our Firm under the caption "Experts" in the Prospectus. McBride, Shopa and Company Certified Public Accountants Wilmington, Delaware December 30, 1997