Hi G,its designed by a guy on diyaudio called Bunpei. http://hifiduino.wordpress.com/2011/04/25/hires-sd-card-player-sdtrans192-v-3-0/http://hifiduino.wordpress.com/2011/05/01/further-experimenting-with-sdtrans-3-0/Link to the thread on diyaudio here:http://www.diyaudio.com/forums/digital-source/142562-microsd-memory-card-transport-project-30.htmlCould always drop a pm to Bunpei to see if you are interested.CheersTuyen