I talked with a tech at DiskWelder about their DSD conversion software (the DiskWelder Bronze 1000 with DSD conversion is available only through Tascam, to get DSD conversion from Diskwelder you have to upgrade to Chrome II, which is $3000). They have two settings, roughly accurate and fast. The accurate one takes around 20 hours to process a DVD-A worth of files. This is clearly NOT what we have in AudioGate, and probably not what is implemented in their hardware either.
Jeff