I'm using OSX 10.3.9 on an iBook G4 with m-audio firewire 410 and Plogue Bidule with Acousmodules AU and VST plugins to produce 5.1 surround sound aiff or wav files either as multi-mono or single aiff/wavex files. I can play these files back using bidule plugins, but I want to produce dolby digital DTS encoded files to play through my home cinema system using the S/PDIF output on the firewire 410.

Is there software available for this?

I have Quicktime pro 7 which can play the DTS files but not convert from wavex etc.