 J. Yoon also collaborated with Shin Hae-chul who had produced their first album under the name "Moon Child" and their upcoming fifth full-length album to form the project group ""Wittgenstein"".Among news of the members' solo and project activities, rumours that M.C the Max also began to spread.However, M.C the Max had squashed the rumours as they announced they were making their comeback with the release of their sixth full-length album "VIA 6" on September 30, 2008 after a year and 5 months.