The investigators will conduct a prospective study of 30 Veterans with treatment-naive genotype 1 chronic hepatitis C infection admitted to the Substance Abuse Residential Rehabilitation Treatment Program (SARRTP) at the G.V. (Sonny) Montgomery VA Medical Center. Enrolled veterans will be treated MK-5172/MI-8742 while receiving a 12 week values based motivational intervention to promote completion of HCV treatment. MK-5172/MK-8742 will be prescribed in accordance with the package insert.