Mark was part of the Turtlerock Mastering team for over eight years, initially working as a second engineer alongside some of Australia’s most respected engineers and producers, he was invited by Rick O’Neil to join Turtlerock in 2004 whilst still studying audio engineering. At Turtlerock, Mark worked on many of Australia’s highest selling albums including John Butler Trio's - Grand National [vinyl] (Triple Platinum, 2 x ARIA awards), and The Whitlams' - Little Cloud (Gold, ARIA nominated). He has mastered tracks for Grinspoon, You Am I, Nick Oliveri (Queens of the Stone Age) - Death Acoustic, Josh Pyke, Children Collide and Youth Group. Mark also worked with Rick O'Neil on the restoration and re-release of the The Sunnyboys substantial back-catalogue. Mark also served as the moderator of the Turtlerock Forum from 2004-2016.