* Load or create a multichannel WDM session in PatchMix. We provide a 5.1 surround playback session template file named "5.1 DVD Playback" on the 44k/48k tab when you use the New Session button of PatchMix. The Session should have three Windows Source strips in PatchMix with peak meters. If creating you own session, make sure that you have also added sends for each strip where you want each surround channel to be routed to which specific output.