It’s certainly possible – but for replication purposes I have to set it in Creator to make my DLT masters. The DL media was for a proof for the client – and the layer break was already set.
so, my suspicion that the layer break and toast were conflicting sounds like it could be the reason….. I’m using Toast Titanium 6.0 – is it maybe possible that my version of the software doesn’t support dual layer burning?