Mark Opitz started his career as a production engineer in television. In 1975, he started work at EMI Studio 301 and went on to become Australia's most successful record producer. In a 30 years career Mark has worked with The Angels, Cold Chisel, Jimmy Barnes, The Divinyls, ACDC, Hoodoo Gurus, Australian Crawl, INXS, The Models, Kiss, Ray Charles and Bob Dylan.