I have an Ultramatch from Behringer. According to the status LEDs of this device the HIFIBerry Digi sends orig and protection bits (markers) together in the data stream.
See page 5 here http://www.behringer.com/assets/SRC2496_M_EN.pdf
and here http://en.wikipedia.org/?title=S/PDIF#Channel_status_bit
orig bit means it is allowed to copy once. protection no copy allowed.
As to my analysis it is contradictory that both bits are set the same time in stream output of the Digi.
Either it's allowed to copy or not.
To my knowledge Wolfson WM8804 has registers to programm to set these bits(markers) or not.
I am not an expert, but I think this goes by GPIO pins.
Do you agree to my analysis ? Is it possible that you correct the design of Digi to have only one of these bits set, but not both together ? Please check this for all yr products.
Digi Trafo 3.0 orig and copy protection bits are set